"XTC" in Sequence view?

What does XTC mean on the left hand side in Sequence view? It appears underneath the track progress bars for tracks 3 and 4. I’m sure it never used to be there until recently, and I don’t think I’ve seen it in anyone else’s Hermod videos.

Any ideas?

This looks like a bug.

Would you be so kind as to report it through the contact form, and attach a zip file of the affected project files?

Thank you

Will do. Thanks!