Some VST Instruments won't load

Just checking if anyone else is having this issue.

When adding a VST instrument track on certain projects (Pro 9), the track is added in the project, but the instrument itself is not. This is happening on some of the VST’s, even Groove Agent SE. If I start a new project I am able to add the tracks as normal. Is it possible that some 3rd party plugins are causing this? I am not using any blacklisted plugins. I have also noticed that some insert effects are not loading as well.

Pretty annoying, as it is somewhat restrcitive.