A warning in the console reads jQuery.Deferred exception $(...).offset() is undefined while uploading a batch of images.

I ran into the known issue where having the same file name aborts the upload, and checked the console log because I was confused about what was going on. However, the console warning does not seem to be related to the same problem, so opening a separate task to look into it.

Screenshot of full error attached here, and in case it helps, I'm uploading a full page screenshot of my browser separately.
I searched and did not see the same error message already posted, however there is at least one similar looking older JS issue.