One of our sites updated to 5.3.0-rc1
and despite our maximum upload limit being 10MB, some files are being rejected from upload with no warning. Other sites on 5.2.5
or 5.2.6
are unaffected, so I can only assume that the issue is with the new(?) file/media manager. The issue is not limited to any specific file type from what I can see, it's happening with .png
and .pdf
files and isn't specific to any browser either. Since smaller images upload, the issue could be related to an upload time out.
Unsuccessful upload example (Image @ ~5.7MB):

Successful upload example (Image @ ~6.6KB):
