Report Exception in Action Center

Hello all, hope you are doing great.
I have two questions:
1- Regarding the action center, when i report an action as an exception and write an exception reason this reason doesn’t show as an exception message in the workflow instead the message is “Object reference not set to an instance of an object”.
It was working fine and showing the exception reason in the exception message however recently i noticed that it changed
I even upgraded the Intelligent OCR Activities Package to the latest version but the error still the same.

2- what is the exact exception type caught in the workflow when i report an exception in the action center

i really appreciate your kind support❤