@mostlostnoob My Games folder has always been included in my AV exception list. I did erase the FAF Client folder's contents though and then reinstalled, now the client launches correctly. Thank you for the help.

Alright, so I tried experimenting with older releases. Version 2023.11.2 does launch but asks for an update. All later releases starting from 2023.12.0 give errors and don't launch at all.

Same issue here, the client doesn't launch after the update. I tried manually downloading and reinstalling it, but it changed nothing. Here's the error message in the attachment: error.txt