MultiTrack SYNC ISSUES w/ Folder Sync

Here’s the bug in action. In this video I first show files are in sync. The I make a cut on on of the lanes. Then choose the arrow tool again. Then select around the parts. You notice it’s now out of sync, the cut part acting as if folder sync is off.
Then I undo, and parts are in sync again.every time I edited the top part at this stage things got out of sync