Hey @bwall, thanks for trying it out and reporting.
Looks like I wasn’t grabbing the arch correctly when the .vst3 was a Windows file (vs. a folder). That’s now fixed (with tests) and deployed and CompPlus passes validation. Thanks for trying and reporting!
Btw, I noticed that your macOS .dmg files have the “can’t drag to symlink” issue on Monterey that I recently ran into. You might be interested in the rabbit hole I went down and apple’s response…