Please capture this in a debug log (step 4b) and attach the log to a Support Ticket: viewtopic.php?t=86643

This will help a developer analyze why this happens on your setup.

It happened at least in the "Artists" node, sorted by Artist (1st) + Title (2nd).

I'm using the Monkey Groove skin.

Perhaps it's related to the situation that I've added a couple new songs in both cases. But I awaited finalization of full track volume calibration and restarted MM a couple of times. And I guess that it behaved also one day later in the same manner.

Unfortunately I have no idea, what else could be pertinent.

Can you provide more details on which node you're in and anything else that may be pertinent? It was behaving normally for me.

The following problem appeared reproducible two times after upgrading from v3213 to v3222, downgrading to v3213 and again upgrading to v3222:

Editing song tags in list view in v3222 is super slow, with abnormal delays in jumping from one tag to another (using tab or mouse click).

Now, I'm back on v3213 for being able to work instead of waiting with MM...

Windows 11 25H2