Unable to "Edit Video Source" / "Configure Features" in fullscreen

Running Netcam Studio v1.5.2 on Windows 10 Pro and unable to edit features and sources while in fullscreen.
However, the windows pops up, but I’m unable to ALT-TAB to open it, even though it is visible.
When the hidden window (e.g. “Edit Video Source…”) is open I am not able to exit fullscreen. The only way to exit fullscreen and do the modification is by holding ALT down while doing “ALT-TAB” and press the “X” with the mouse on the mini window.


Yes, it locks everything up.