It is just while trying to update metadata fields on hundreds of documents. I choose something like 300 documents, select to Show Fields, then change the value I want to change for all and I get prompted every time (the system detected changes to the files your currently viewing do you want to reload?) It does not matter if I say Yes or No to this prompt, it locks all the files by me so I can't even try again.

Eventually I found I could do it if I only selected 70 at a time, but I had 1500 to do.

I have done this many times in on prem systems without an issue, it is simply updating a single field across a large number of entries, but field data is small and easy for a computer to handle.