I'm trying to post in the Coding forum and had two small .jpg attachments on my thread. I couldn't actually post it, though. I kept getting this (if the attachment works this time). Didn't get anything by clicking Details. :-\
I did re-add them, but just kept getting the message. They're both small filesizes; like 24K.
Can't modify my initial post but just popping back in to say that I believe that error was probably a Chrome thing. That seems more likely than an SMF thing. Sorry. :D