Sporadic error when uploading media?


Active member
So, I have the latest of everything and have tried disabling all plugins. Nothing works... For some reason, I have a fairly large number of users getting an error when they to upload an image to a thread:

11-4-2016 2-15-22 PM.jpg

However, they can upload an image to a convo... I myself can not reproduce this issue.

Any idea as to where I should look first?