Hey Jeff,
Sorry to butt in, but I saw the video and recalled having experienced the problem myself. I gave reproducing the issue a go and found that I hit the issue when doing the following:
First make sure that PIE window is ‘Always on top’. Can be set in Editor Preferences/ Level Editor - Play. For practical purposes disable ‘Always center window to screen’.
- From a blueprint with a breakpoint, that will trigger when playing, hit the play button. This should create a new editor window for play.
- When the breakpoint is reached, focus transfers to the blueprint, and the individual blueprint triggering the breakpoint is automatically selected as the debug object in the debug filter.
- Do nothing, but pressing the resume button.
- At this point the process resumes, but instead of clicking or mousing over the PIE window, attempt right dragging in the blueprint node space. This reproduces the problem for me at least.