Steps to reproduce:
- Open curve editor
- Drag a key or curve handle
- While dragging with left mouse button, press right mouse button
- Key or handle jumps back to original location and mouse is released
- Click play
- Editor refuses to launch PIE, saying “Can’t play in editor when performing Mouse Drag operation”
This can be worked around merely by dragging a key or handle and releasing normally.
I was able to reproduce this issue on our end. I have provide a link to the public tracker below. Please feel free to visit the provided link for future updates. Thank you for your time and information.
Link: Unreal Engine Issues and Bug Tracker (UE-33993)
Make it a great day
Thanks for the fast action! Any chance I could get this report looked at too? It’s a much more aggravating issue…
When using a “Runtime Float Curve Structure” variable this still produces the same bug in 4.22.2