In the 2.12 version I started to get this error in logs:
Error in expression <orEach everyContainer _this; [false, _found] select !isNil "_found" }; if (_> Error position: <_found] select !isNil "_found" }; if (_> Error Неопределенная переменная в выражении: _found File /temp/bin/A3/Functions_F/Inventory/fn_hasItem.sqf..., line 47
Can't find any problems in function calls in my scripts - and, more of that, nothing changed in those parts from previous versions.