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[Dynamite]

Could there be a cache somewhere for that?

Log file:
14/11/2024 22:09:23 : WallpaperSSPro v5.2.5 x64
14/11/2024 22:09:23 : Windows NT 6.2 Build 9200 [OS.Ver 6.2]
14/11/2024 22:09:23 : comctl32.dll Version 6.10.26100.2161
14/11/2024 22:09:23 : Gdiplus Available, GdiPlus.dll Version 6.2.26100.1882
14/11/2024 22:09:23 : Screen Size: 1920,1080 LogPixels: 120,120, sIconSize: 20,20
14/11/2024 22:09:23 : Bits/Pixel: 32
14/11/2024 22:09:23 :
14/11/2024 22:09:23 : StartType= 4
14/11/2024 22:09:23 : CWicUtility::IsAvailable(), Error 0
14/11/2024 22:09:23 : Gdiplus Available, GdiPlus.dll Version 6.2.26100.1882
14/11/2024 22:09:23 : CPlugIns::Load, path not found: C:\Program Files\WallpaperSSPro\PlugIns
14/11/2024 22:09:23 : Init: OpenMP enabled=1
14/11/2024 22:09:23 : Init: OpenMP num threads=6
14/11/2024 22:09:23 : MonitorEnumProc, Monitor (0) Rect=(0,0)-(1920,1080) Size=(1920,1080)
14/11/2024 22:09:23 : MonitorEnumProc, Monitor DPI=(120,120), 1
14/11/2024 22:09:23 : MonitorEnumProc, DisplayDevice=\\.\DISPLAY1
14/11/2024 22:09:23 : GetMonitorsInfo, Union Rect=(0,0)-(1920,1080)
14/11/2024 22:09:24 : GetMonitorsInfo, Monitor (0) Rect=(0,0)-(1920,1080)
14/11/2024 22:09:24 : GetMonitorsInfo, Union Rect=(0,0)-(1920,1080)
14/11/2024 22:09:24 : InitMonitorsData, Mon. N. changed 0 -> 1
14/11/2024 22:09:24 : InitWic: WIC Ok
14/11/2024 22:09:24 : CDesktopAnimation::Init(), WorkerW not present, trying to spawn it
14/11/2024 22:09:24 : CDesktopAnimation::Init(), WorkerW found as child of Progman
14/11/2024 22:09:24 : CDesktopAnimation::Init(), ghShellDLL = 1013a
14/11/2024 22:09:24 : CDesktopAnimation::Init(), ghWorkerW = 40012
14/11/2024 22:09:24 : CDesktopAnimation::Init(), SPI_GETCLIENTAREAANIMATION = 1, SPI_GETHIGHCONTRAST=0
14/11/2024 22:09:24 : calling WTSRegisterSessionNotification
14/11/2024 22:09:24 : MainFrame Created Succesfully
14/11/2024 22:09:24 : InitInstance OK
14/11/2024 22:09:24 : OnUsrInitOK
14/11/2024 22:09:24 : Loading saved full files List
14/11/2024 22:09:24 : LoadFullFilesList: list loaded, 8247 entries
14/11/2024 22:09:24 : Loading saved Image List, m_BakFiles Count=8247
14/11/2024 22:09:24 : LoadImgListIdx: list loaded, 7894 (0) entries
14/11/2024 22:09:24 : ScanFolders, Start...
14/11/2024 22:09:24 : BuildImageListLow: initial list size 3, recursive=1
14/11/2024 22:09:24 : BuildImageListLow: found folder D:\Imágenes\Wallpapers\CGWallpapers
14/11/2024 22:09:24 : GetAllFilesInFolder: found 3136 files in folder D:\Imágenes\Wallpapers\CGWallpapers
14/11/2024 22:09:24 : GetAllFilesInFolder: after filters 3136 files
14/11/2024 22:09:24 : BuildImageListLow: found folder D:\Imágenes\Wallpapers\GameWallpapers (1920x1080)
14/11/2024 22:09:24 : GetAllFilesInFolder: found 1075 files in folder D:\Imágenes\Wallpapers\GameWallpapers (1920x1080)
14/11/2024 22:09:24 : GetAllFilesInFolder: after filters 1075 files
14/11/2024 22:09:24 : BuildImageListLow: found folder D:\Imágenes\Wallpapers\GameWallpapers
14/11/2024 22:09:24 : GetAllFilesInFolder: found 4036 files in folder D:\Imágenes\Wallpapers\GameWallpapers
14/11/2024 22:09:24 : GetAllFilesInFolder: after filters 4036 files
14/11/2024 22:09:24 : BuildImageListLow: Total n. of files in list 8247, time 234ms
14/11/2024 22:09:24 : ScanFolders, no change
14/11/2024 22:09:24 : OnUsrInitOK scan completed
14/11/2024 22:09:24 : OnUsrInitOK exit
14/11/2024 22:09:24 : ChangeWallpaper: Enter (3), -1 0
14/11/2024 22:09:24 : ChooseWallpaperForMon: mon 0, Display Filter=0
14/11/2024 22:09:24 : WeightedRandom: 2682, total=7894
14/11/2024 22:09:24 : ChooseNewImage: idx=2682 (Size=7894), 2809, file: D:\Imágenes\Wallpapers\CGWallpapers\wallpaper_tiziano_baracchi_08_2560x1440.jpg
14/11/2024 22:09:24 : ChooseWallpaperForMon: D:\Imágenes\Wallpapers\CGWallpapers\wallpaper_tiziano_baracchi_08_2560x1440.jpg (pos=203)
14/11/2024 22:09:24 : BuildWallpaper: Enter
14/11/2024 22:09:24 : BuildWallpaper Size =(1920,1080)
14/11/2024 22:09:24 : BuildWallpaper: 0, D:\Imágenes\Wallpapers\CGWallpapers\wallpaper_tiziano_baracchi_08_2560x1440.jpg : 5fe528
14/11/2024 22:09:24 : Exif UserComment, maybe it's jpeg comment
14/11/2024 22:09:24 : ReadExifData: time= 0ms
14/11/2024 22:09:24 : PrepareNewImage: Frame Type=0, Size= 16,16 (0-0,1920-1080), 0 0
14/11/2024 22:09:24 : ResizeBmp_gdiplus: Old Size=2560,1440 New Size=1920,1080 Stretch=1
14/11/2024 22:09:24 : ResizeBmp_gdiplus: Size Adjusted: (1920,1080)
14/11/2024 22:09:24 : BuildWallpaper: Build Time: 0.22s
14/11/2024 22:09:24 : BuildWallpaper: Save Time: 0.02s
14/11/2024 22:09:24 : CDesktopAnimation::Init(), WorkerW found as child of progman
14/11/2024 22:09:24 : CDesktopAnimation::Init(), ghShellDLL = 1013a
14/11/2024 22:09:24 : CDesktopAnimation::Init(), ghWorkerW = 40012
14/11/2024 22:09:24 : CDesktopAnimation::Init(), SPI_GETCLIENTAREAANIMATION = 1, SPI_GETHIGHCONTRAST=0
14/11/2024 22:09:24 : SetWallpaper: bUseActiveDesk = 1 (0 0 1)
14/11/2024 22:09:24 : OnWinIniChange (0,0)
14/11/2024 22:09:25 : SetWallpaper: Wallpaper changed to C:\Users\Daniel\AppData\Roaming\WallpaperSSPro\Wallpaper.bmp
14/11/2024 22:09:25 : BuildWallpaper: SetWallpaper Time: 0.20s
14/11/2024 22:09:25 : BuildWallpaper: Exit
14/11/2024 22:09:25 : ChangeWallpaper: Exit
14/11/2024 22:09:25 : MonitorEnumProc, Monitor (0) Rect=(0,0)-(1920,1080) Size=(1920,1080)
14/11/2024 22:09:25 : MonitorEnumProc, Monitor DPI=(120,120), 1
14/11/2024 22:09:25 : MonitorEnumProc, DisplayDevice=\\.\DISPLAY1
14/11/2024 22:09:25 : GetMonitorsInfo, Union Rect=(0,0)-(1920,1080)
14/11/2024 22:09:25 : GetMonitorsInfo, Monitor (0) Rect=(0,0)-(1920,1080)
14/11/2024 22:09:25 : GetMonitorsInfo, Union Rect=(0,0)-(1920,1080)
14/11/2024 22:09:37 : OnWinIniChange (0,0)
14/11/2024 22:09:37 : MonitorEnumProc, Monitor (0) Rect=(0,0)-(1920,1080) Size=(1920,1080)
14/11/2024 22:09:37 : MonitorEnumProc, Monitor DPI=(120,120), 1
14/11/2024 22:09:37 : MonitorEnumProc, DisplayDevice=\\.\DISPLAY1
14/11/2024 22:09:37 : GetMonitorsInfo, Union Rect=(0,0)-(1920,1080)
14/11/2024 22:09:37 : GetMonitorsInfo, Monitor (0) Rect=(0,0)-(1920,1080)
14/11/2024 22:09:37 : GetMonitorsInfo, Union Rect=(0,0)-(1920,1080)
14/11/2024 22:11:04 : OnWinIniChange (0,0)
14/11/2024 22:11:04 : OnWinIniChange (0,4)
14/11/2024 22:11:04 : MonitorEnumProc, Monitor (0) Rect=(0,0)-(1920,1080) Size=(1920,1080)
14/11/2024 22:11:04 : MonitorEnumProc, Monitor DPI=(120,120), 1
14/11/2024 22:11:04 : MonitorEnumProc, DisplayDevice=\\.\DISPLAY1
14/11/2024 22:11:04 : GetMonitorsInfo, Union Rect=(0,0)-(1920,1080)
14/11/2024 22:11:04 : GetMonitorsInfo, Monitor (0) Rect=(0,0)-(1920,1080)
14/11/2024 22:11:04 : GetMonitorsInfo, Union Rect=(0,0)-(1920,1080)
14/11/2024 22:12:31 : ChangeWallpaper: Enter (1), -1 0
14/11/2024 22:12:31 : ChooseWallpaperForMon: mon 0, Display Filter=0
14/11/2024 22:12:31 : WeightedRandom: 621, total=7893
14/11/2024 22:12:31 : ChooseNewImage: idx=621 (Size=7893), 647, file: D:\Imágenes\Wallpapers\CGWallpapers\wallpaper_corrado_vanelli_12_2560x1440.jpg
14/11/2024 22:12:31 : ChooseWallpaperForMon: D:\Imágenes\Wallpapers\CGWallpapers\wallpaper_corrado_vanelli_12_2560x1440.jpg (pos=203)
14/11/2024 22:12:31 : BuildWallpaper: Enter
14/11/2024 22:12:31 : BuildWallpaper Size =(1920,1080)
14/11/2024 22:12:31 : BuildWallpaper: 0, D:\Imágenes\Wallpapers\CGWallpapers\wallpaper_corrado_vanelli_12_2560x1440.jpg : 5fe658
14/11/2024 22:12:31 : Exif UserComment, maybe it's jpeg comment
14/11/2024 22:12:31 : ReadExifData: time= 0ms
14/11/2024 22:12:31 : PrepareNewImage: Frame Type=0, Size= 16,16 (0-0,1920-1080), 0 0
14/11/2024 22:12:31 : ResizeBmp_gdiplus: Old Size=2560,1440 New Size=1920,1080 Stretch=1
14/11/2024 22:12:31 : ResizeBmp_gdiplus: Size Adjusted: (1920,1080)
14/11/2024 22:12:32 : BuildWallpaper: Build Time: 0.20s
14/11/2024 22:12:32 : BuildWallpaper: Save Time: 0.02s
14/11/2024 22:12:32 : CDesktopAnimation::Init(), WorkerW found as child of progman
14/11/2024 22:12:32 : CDesktopAnimation::Init(), ghShellDLL = 1013a
14/11/2024 22:12:32 : CDesktopAnimation::Init(), ghWorkerW = 30454
14/11/2024 22:12:32 : CDesktopAnimation::Init(), SPI_GETCLIENTAREAANIMATION = 1, SPI_GETHIGHCONTRAST=0
14/11/2024 22:12:32 : SetWallpaper: bUseActiveDesk = 1 (0 0 1)
14/11/2024 22:12:32 : OnWinIniChange (1,0)
14/11/2024 22:12:32 : SetWallpaper: Wallpaper changed to C:\Users\Daniel\AppData\Roaming\WallpaperSSPro\Wallpaper.bmp
14/11/2024 22:12:32 : BuildWallpaper: SetWallpaper Time: 0.16s
14/11/2024 22:12:32 : BuildWallpaper: Exit
14/11/2024 22:12:32 : ChangeWallpaper: Exit
14/11/2024 22:12:36 : ExtendDesktop, Monitor found: \\.\DISPLAY1, NVIDIA GeForce RTX 3070 Ti, (Flags=0x5)
14/11/2024 22:12:36 : ExtendDesktop, Monitor found: \\.\DISPLAY2, NVIDIA GeForce RTX 3070 Ti, (Flags=0x0)
14/11/2024 22:12:36 : ExtendDesktop, Error -1 (0xffffffff) for Monitor: NVIDIA GeForce RTX 3070 Ti, position: 1920, op=1
14/11/2024 22:12:36 : ExtendDesktop, Monitor found: \\.\DISPLAY3, NVIDIA GeForce RTX 3070 Ti, (Flags=0x0)
14/11/2024 22:12:36 : ExtendDesktop, Error -1 (0xffffffff) for Monitor: NVIDIA GeForce RTX 3070 Ti, position: 1920, op=1
14/11/2024 22:12:36 : ExtendDesktop, Monitor found: \\.\DISPLAY4, NVIDIA GeForce RTX 3070 Ti, (Flags=0x0)
14/11/2024 22:12:36 : ExtendDesktop, Error -1 (0xffffffff) for Monitor: NVIDIA GeForce RTX 3070 Ti, position: 1920, op=1
14/11/2024 22:12:36 : OnDisplayChange (0,0)
14/11/2024 22:12:36 : MonitorEnumProc, Monitor (0) Rect=(0,0)-(1920,1080) Size=(1920,1080)
14/11/2024 22:12:36 : MonitorEnumProc, Monitor DPI=(120,120), 1
14/11/2024 22:12:36 : MonitorEnumProc, DisplayDevice=\\.\DISPLAY1
14/11/2024 22:12:36 : GetMonitorsInfo, Union Rect=(0,0)-(1920,1080)
14/11/2024 22:12:36 : GetMonitorsInfo, Monitor (0) Rect=(0,0)-(1920,1080)
14/11/2024 22:12:36 : GetMonitorsInfo, Union Rect=(0,0)-(1920,1080)
14/11/2024 22:12:42 : ChangeWallpaper: Enter (1), -1 0
14/11/2024 22:12:42 : ChooseWallpaperForMon: mon 0, Display Filter=0
14/11/2024 22:12:42 : WeightedRandom: 142, total=7892
14/11/2024 22:12:42 : ChooseNewImage: idx=142 (Size=7892), 148, file: D:\Imágenes\Wallpapers\CGWallpapers\wallpaper_allen_wei_ming_14_3840x2160.jpg
14/11/2024 22:12:42 : ChooseWallpaperForMon: D:\Imágenes\Wallpapers\CGWallpapers\wallpaper_allen_wei_ming_14_3840x2160.jpg (pos=203)
14/11/2024 22:12:42 : BuildWallpaper: Enter
14/11/2024 22:12:42 : BuildWallpaper Size =(1920,1080)
14/11/2024 22:12:42 : BuildWallpaper: 0, D:\Imágenes\Wallpapers\CGWallpapers\wallpaper_allen_wei_ming_14_3840x2160.jpg : 5fdde8
14/11/2024 22:12:42 : Exif UserComment, maybe it's jpeg comment
14/11/2024 22:12:43 : ReadExifData: time= 0ms
14/11/2024 22:12:43 : PrepareNewImage: Frame Type=0, Size= 16,16 (0-0,1920-1080), 0 0
14/11/2024 22:12:43 : ResizeBmp_gdiplus: Old Size=3840,2160 New Size=1920,1080 Stretch=1
14/11/2024 22:12:43 : ResizeBmp_gdiplus: Size Adjusted: (1920,1080)
14/11/2024 22:12:43 : BuildWallpaper: Build Time: 0.28s
14/11/2024 22:12:43 : BuildWallpaper: Save Time: 0.01s
14/11/2024 22:12:43 : CDesktopAnimation::Init(), WorkerW found as child of progman
14/11/2024 22:12:43 : CDesktopAnimation::Init(), ghShellDLL = 1013a
14/11/2024 22:12:43 : CDesktopAnimation::Init(), ghWorkerW = 50472
14/11/2024 22:12:43 : CDesktopAnimation::Init(), SPI_GETCLIENTAREAANIMATION = 1, SPI_GETHIGHCONTRAST=0
14/11/2024 22:12:43 : SetWallpaper: bUseActiveDesk = 1 (0 0 1)
14/11/2024 22:12:43 : OnWinIniChange (1,0)
14/11/2024 22:12:43 : SetWallpaper: Wallpaper changed to C:\Users\Daniel\AppData\Roaming\WallpaperSSPro\Wallpaper.bmp
14/11/2024 22:12:43 : BuildWallpaper: SetWallpaper Time: 0.14s
14/11/2024 22:12:43 : BuildWallpaper: Exit
14/11/2024 22:12:43 : ChangeWallpaper: Exit

[gpb]

From the log file I can see there is no error setting the new wallpaper and the function to extend the desktop actually does nothing except to notify the system that the display configuration changed.
It seems you are running Win11 24H2 and unfortunately there are a few issues with wallpaper changers:

https://learn.microsoft.com/en-us/windo ... 370msgdesc

[Dynamite]

What bad news. But hey, at least now I know I should wait patiently and stay calm that it's not a problem with my computer

[gpb]

Anyway I tested WallpaperSS 5.2.5 on 4 computers with Win11 24H2 and found no problems. It worked on all 4 PCs, maybe there is some specific software/hardware configuration that triggers those problems.

[Dynamite]

Don't tell me that now haha...

[Dynamite]

I swear I'm not kidding.
If I put a flash drive in one of the front USB ports... the wallpapers start to change.