Cursor move automatically when I cut a region.

Hi, I’m using Cubase 10.5 Pro.
When I cut a region, cursor move without any reason.

As you can see, when I cut at 56 position,
the cursor which was at 58.3 suddenly move to 52.2.
It’s very annoying.
What should I do?
Sincerely Ryan.

When I disabled ‘Link Project and Lower Zone Editor Cursors’, it doesn’t happen.
What happen?