Editor crash scrubbing Matinee (reproducible)

In Editor 4.2.1:

From Toolbar

  • Matinee → Add New
  • Tracks tab → Add New Empty Group
  • RMB on New_Group → Add New Sound Track
  • LMB drag over the timeline to scrub

Hi ,

I was able to reproduce this and have attached this page as well as my own findings to a bug report to be assessed. Thank you and have a great day!