Here is an updated test build:
https://www.macecraft.com/downloads/betas/jv16setup_test3.exe
Note: Due to the debug mode, the program's executable is bigger than normal and it can be extremely slow.
After you run it, please send here all the .txt and .log files generated to the program's installation directory (by default: C:\program files (x86)\jv16 PowerTools X\). If you can, you can zip the files.
Thank you in advance!