I am getting this error seemingly randomly in the logging, and it doesn't appear to be affecting anything. In addition there are protocolscript warnings that indicate an invalid number. Does anyone know where these come from/how to go debug them? 
Alex Johnson [SLC] [DevOps Advocate] Selected answer as best 1st December 2020
That appears often when you have a typo in a QAction (e.g. you forgot to have a ; on the end or something similar)
Try to open all the QActions on the Visual Studio and check if any error appears on the right scroll bar.
Pedro Almeida [SLC] Answered question 29th October 2020