Forgivemy ignorance, but I'm not at all sure how to solve this because I've already restarted my computer and had these plugins be rescanned multiple times to no avail. I upgraded to Ventura yesterday and now this happened along with LPX Colourizer not working despite having the correct read & write permissions (colour me shocked that an apple update would lead to software issues).
I reinstalled my plug-ins that were doing this and that seemed to work. I use Gullfoss too and it was giving me the same error so I checked if Gullfoss had an updated version, which it turns out it did. Try going to the soundtheory website and re-downloading the plug-in. I did not uninstall the old version, it seems to have just reinstalled the updated version on top of the old one. I don't use Purity, but I was also having this problem with one of my SSL plug-ins and the same trick seemed to work.
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