Technical issue preventing ChatGPT 4o from accessing an xlsx or csv file

I keep getting this message after uploading a 50kb csv (previously an xlsx) file. I’ve troubleshot as much as I’ve been prompted. No impact. Anyone else experiencing this issue?

“It seems there is still a technical issue preventing me from accessing the file. If possible, try renaming the file slightly and re-uploading it. Alternatively, you can check if the file opens correctly on your end and re-save it as a CSV before re-uploading.”