Hello. My Ableton project crashes whenever I reopen a project and delete a track containing a previously frozen Massive or deactivated massive. Appears 100% of time. Mac M2 and Ableton
Have you at least given full disk access to both Ableton and ALL NI apps including NTKDaemon ? : How to Enable Full Disk Access on macOS
And if using Sequoia then N.I. apps (and DAW ?) must be added to the Local Network (Ref.: How to grant audio apps access to your local network on macOS 15 Sequoia)
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Also then you could try doing a Deep-rescan of all installed plug-ins. To start a deep rescan, hold ALT/Option and click "Rescan."