How large is your game project? If it's small, could you send it to me to check out? If not, could you tell what files do you have inside _Debug and Compiled/Windows folders?
Also, please specify what beta version exactly are you using (numbers can be seen in Help - About).
Any template projects. If you still want files I can send you.
_Debug contains acsetup.cfg, empty.exe
Complied/Windows contain acsetup.cfg, empty.exe and winsetup.exe
Latest version
AGS Editor .NET (Build 3.5.0.16) ** BETA VERSION **
v3.5.0, September 2019