[WARNING]: tempo map asked for BBT time at frame -1024

Hey, sorry if this was posted already because I couldn’t find this issue here or in the bug report.
I’m using Arch64 and running Ardour5.1.
Since the upgrade, I’m getting this error message in the log from a few projects.

[WARNING]: tempo map asked for BBT time at frame -1024

At that point, CPU and RAM usage gets out of control and Ardour crashes. Sometimes nor recovering from crash.

Could you p;ease file a bug report?
If possible, include the ardour session file that causes the problem
(just the .ardour file, not the subdirectories in the session folder).


Could some one take a look at this, there is bug report with the requested files/information? I’m getting the same thing and ardour is very unstable as a result.