With Dolphin for Windows, it's impossible to really move files to trash. After pressing DEL to delete the file, the file disappears from the display but it's not put into the trash. Pressing F5 to refresh makes the file back.

STEPS TO REPRODUCE
1. Remove any file (DEL key or right-click --> move to trash): file disappears from the display.
2. Press f5 to refresh: the file is back.

Alternatively, go to the trash, the file is not in there, go back to the location of the file. The file is back

OBSERVED RESULT

The file is not placed into the trash.

EXPECTED RESULT

The file should be in the trash.

SOFTWARE/OS VERSIONS
Windows: 21H2 build 19044.1645
KDE Frameworks Version: 5.93.0
Qt Version: 5.15.2

ADDITIONAL INFORMATION

Another problem that may be related is that it's impossible to definitely remove a file from within the trash. I mean a file is already in the trash. When the user tries to  definitely remove it from Dolphin, the file looked removed but comes back after refreshing the screen.