Hello, for any reasons, when I use AutoWall, the window border of the video player is visible in the background

This is really really strange because when I perform manually every steps one by one in a cmd terminal, it works well :
cd "C:\Apps\AutoWall\mpv\"
"C:\Apps\AutoWall\weebp\wp.exe" run mpv "C:\Apps\AutoWall\VideosHere\KagangtuyaBlackHole.mov" --loop=inf --player-operation-mode=pseudo-gui --force-window=yes --no-audio
cd "C:\Apps\AutoWall\weebp\"
wp add --wait --fullscreen --class mpv
Thank you very much for your app, I hope you can help :)
Hello, for any reasons, when I use AutoWall, the window border of the video player is visible in the background

This is really really strange because when I perform manually every steps one by one in a cmd terminal, it works well :
Thank you very much for your app, I hope you can help :)