I just upgraded from IntelliJ 2019.3 to 2020.1 and it is having various problems, mainly it is not highlighting errors in the code and it is also not doing syntactic highlighting correct either. I found this compiler flag that I don't remember being there and I haven't been able to find anything on the internet about it either. Does anybody know what this is doing?
This says it is some kind of non-standard option, but I don't see anything resembling -XD, and most options like this seem like there should be an equals sign and a value included.
