Trouble with HOSTed plugins on M2 Tahoe 26.5.1

Was just given a 2023 Mac Mini M2 which I updated to Tahoe 26.5.1.

Installed VCV Rack 2 Pro; all good, makes the appropriate bleeps (I am a longtime Rack user on Windows and Intel Macs).

The issue is when I load VST/VST3 instruments plugins using the HOST or HOST XL module…the UI sometimes takes tens of seconds to appear, and after it does, the visual interface lags and is semi-responsive (best case) to completely non-responsive (worst case) in terms of mouse clicks. But the audio is processing and sounds just fine.

As a sanity check, I loaded up the same misbehaving plugins with Plogue Bidule as a host, and all worked as expected.

Anyone have an idea of what could be going on or have some troubleshooting procedures?

Thanks!

This is a known issue:

Please report to support.

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Thank you! I didn’t see that. Will report.

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