Adding a breakpoint to a blueprint node connected to the "Event Tick" constrains the user's mouse cursor to the blueprint window when clicking the "Play" button

Hello Andrei,

Thank you for the report. Fortunately, I was able to reproduce the issue in 4.16, 4.17, and 4.18 Preview thanks to your helpful video. I have successfully logged the issue. If you would like to track it please feel free to follow this link: Unreal Engine Issues and Bug Tracker (UE-50619)

If there is anything else that I can help you with please let me know.

Best Regards,