unreal engine is missing the increment int in the bp_thirdPersonalCharater Blueprint. How do I get it back?

Sadly, updating the StandardMacros didn’t work.
Students were still missing the Increment/Decrement int and many other macros are missing.

Is it because of the lab setting? Multiple users with one executable?

Looking for other solutions for this issue. 3 weeks into games and hate to have students starts over.