I also tried in this version the problem with the surface controller plugins and the problem persists. I noticed that the problem does not occur when using the Tangent Controller. I hope this problem is solved as well. Thank you.
Application: Premiere Pro (Beta) v220.127.116.11
OS: Windows v10.0.18363, RAM: 47.93 GB, CPUs (logical): 16
Thank you SO MUCH for that video. That helped more than you can imagine. I've created a bug for this.
I did tests on BETA 18.104.22.168 and another problem appeared. The control surface plugin is customized by me. From what I notice from the API, EuconControlSurface :: Update () no longer works. The problem with crashing when adding tracks is still present.