Backbone crashes Logic Pro

Backbone is causing Logic to crash. MacOS Catalina. Trying to find a pattern for a proper bug report but it seems to be mostly with longer samples.

Anybody else experiencing similar issues?

One cause of crashes which I can reliably repeat is with a sample in a layer which is more than a few seconds long. Modifying with resynthesis causes Logic to crash.

Crashes in Nuendo 11 too. Becoming reliably unstable.

Yea it crashes on all my DAWs including Cubase. On Mac BigSur