I can work around this error simply by clicking the "Retry" button, so I lived with this problem for years. But now, working heavily on a 507 KB file for days, I would like to know how I can debug this phenomenon.
I see that these are big files, an obvious difference to other files. One is about 2239 KB, the other 507 KB. Another one has 582 KB and I seldom had this error here, others have around 300 KB, no problem at all. So the size may be a hint.
I don't see how my code could be using this file, and if so, why the retry option would resolve the issue then. Any ideas?