I tried to upload a new version of https://commons.wikimedia.org/wiki/File:Portrait_of_Nora_Perry.jpg by going to https://commons.wikimedia.org/w/index.php?title=Special:Upload&wpDestFile=Portrait_of_Nora_Perry.jpg&wpForReUpload=1. After I clicked "Upload file", it gave me the following error:
Internal error [0e08f82e-9189-41cc-964d-b870ce88dad6] 2020-09-18 21:44:17: Fatal exception of type "JobQueueError"
I then clicked the back button and re-submitted the form. This time the upload worked, but something very strange happened. Now the thumbnails for both versions of the image are the image I just uploaded, and the link to the 2016 version goes to https://upload.wikimedia.org/wikipedia/commons/archive/a/a1/20200918214448%21Portrait_of_Nora_Perry.jpg, which is from today. (Notice the 20200918 in the URL.) So now there is no way to access the original 2016 version of File:Portrait_of_Nora_Perry.jpg. I think that the error during upload caused some sort of revision sequencing to get out of whack.