MuseScore can’t update on new Mac

I recently switched to a MacBook Pro M4 Max on OS 15.1.1. MuseScore tells me an update is possible to 4.33 (I have 4.3.2) but when I try to install, I get this message: The operation can’t be completed because some items had to be skipped. For each item, choose File > Get Info, make sure “Locked” is deselected, and then check the Sharing & Permissions section. When you are sure the items are unlocked and not designated as Read Only or No Access, try again.

Which items? The MuseScore app Get Info shows unlock and all sharing/pemissions set to read and write. What am I missing?

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