I tried to add about 20 small jpeg (approx 40kb) to a post. An error pop up without any message. I could reproduce it several times.
I briefly check
misago/threads/serializers/attachment.py and if if I'm not mistaken, there is no file number or files size sum limit (
upload is for one file right?)
I also fall on a test that might not be correct but harmless
filetype.size_limit and upload.size > filetype.size_limit * 1024: (filetype.size_limit is first treated as a boolean)
I'll try to check that further when possible.