I have issues with newest SimApp Pro v1.16.5 with universal UFC and DCS SRS. Either UFC or SRS will disconnect from game after releasing a slot in DCS. I rolled back to SimApp v1.15.37 and now UFC & SRS work fine again. Can you @Trigati check if there is something in the new SimApp requiring changes on UFC lua?
In DCS export I must have SRS as the last command and SimApp line just before that to make the combo to work.