I am using v3.0.2.
Let's say you have a file named A.exe and in the same folder a signature file named A.exe.asc.
If you right click on A.exe and do More GpgEX options -> Verify you get an error dialog reading:
Error returned by the GnuPG user interface (Kleopatra):
Internal error
If you do the same on A.exe.asc, verification works fine.
v2.3.3 verifies correctly the file even if you right click on A.exe instead of the signature file.
This is a regression.