FL plugins will not work in FLStudio 20. Because I don't use them much, I never bothered to try to fix it.
I do want to use Harmor though, and I can use some FLStudio plugins like ...
flstudio 12 because I was wanting to clean up some space but then I accidentally deleted a very important part of flstudio then from there it said cannot access flstudio , then I followed the directions to deleting ...