I am closing the ticket due to lack of response.
Please get in touch with us at any of the other support channels – https://helpx.adobe.com/support.html . Please give a reference to this post so that we can identify you.
Since this is not a generic issue that we can reproduce at our end, we will need someone to look into your machine to figure out what is going on here.
An error occurred while saving the commentMark commented
Still happens on mine too. v22.1.
Seems to fix when the program is restarted, but if you're continuing work on a variety of documents the list and thumbnails do not correspond to the file that opens.