This is the same problem as the other scene you posted with the bizarre vertex popping. The BitArray object was creating a race condition in my code that assumed writing to a channel was thread-safe as long as only one thread read/wrote to that index at a time. It is now fixed for a new build expected today.
Yes. Can you also confirm that disabling threading using the property “ThreadingEnabled” exposed on the Genome modifier (via. MXS) prevents this problem?