By chance does it happen when you post from a mobile and then from a computer (laptop or desktop?)
Yes, though only the once (well, one set) so far. It first happened yesterday on the ipad while my desktop Linux computer was off, and then today on the desktop. Do you think the error message is from using the same login on multiple machines?
Yes. It happens to me when I try to post on my phone and then switch to my laptop. I found, though, that all I have to do is hit “submit” again and the post actually posts (the writing should still be there, just turned red?)
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"He was a lot of things to me" "The only conclusion was love"