Hi Wizard, thank you for your help! I can confirm this solution worked for me.

I had that same Dta folder on \Arma 3\Heli\ but I don't remember moving any of the files on my ArmA 3 folder so I don't know how it could've gotten there. Anyway, I removed that Dta folder from the Heli folder and both the original Launcher and Arma3Sync seem to be working good again.

Thanks again for your time and help; have a nice day!

Hi Wizard,

I also can confirm that doesn't work.

Thanks in advance for the help.

P.S. madpat3, thank you! I can run with mods at least for now :P

I'm having the exact same issue with the 1.50.131969 version, since the update on the 26th of August.

Also, I just reinstalled and updated my graphic card drivers with no luck in solving the problem.

What I find strange though, is that I can run the game without mods using Arma3Sync, but not with the ArmA 3 official launcher. It also runs good if I use the arma.exe directly from the ArmA 3 installation folder.

Also, if I try to run the game with mods from either the official launcher or Arma3Sync, this same error pops up.

Hope that helps a little to pinpoint the problem.