Logic Pro 10.5 crashing plug-ins
After upgrading to Logic 10.5, some of the plugins used in my sessions crash Logic Pro immediately when I try to open them. So far it's crashed some of my Waves and iZotope (specifically CLA Mixdown and Vocal Doubler) plug-ins, and I'm sure I will discover more as I continue working. Most inconvenient as I use those plug-ins on the entire album I'm working on. As far as I can tell, the currently installed plug-ins are doing their jobs, but I can neither open and adjust them, nor install them on new tracks.
I've tried reinstalling the plug-ins (followed by system reboots), creating a new session and removing and replacing the plug-ins on individual tracks, but the Logic still crashes each and every time.
Any recommended steps to fixing this? Obviously I could use alternate plug-ins or attempt to roll-back to Logic 10.4.5, but I'd rather use the current version and get use out of the plug-ins I've invested in.
Thanks!
(using LP 10.5 on a 2017 iMac 4.2 GHz Quad-Core)
iMac Line (2012 and Later)