This are the things I would do:
1. open Task Manager
To see how the Computer is performing while this issue.
2. run luban As administrator
(right click on luban icon…)
3. don’t use a full size screen
Make the window of luban small as possible. Sometimes a popup notification opens behind the screen and you couldn’t see it
4.reinstall luban
5. older version of luban
if you have the same issues after reinstalling luban, I would try to install an older version of luban
You can find them here:
[Snapmaker Luban Downloads and Updates]