I just started with the free jira cloud account and created some projects, boards, tasks and stories.
All this worked without problems.
After this I tried to add some screenshot to a task, but it's not working.
The sceenshots are about 1 MB and I already checked the max. attachment site inside system settings. Even files with some kb do not work.
After dragging the image into the attachent dialog, the images first appear in a light transparent look.
After pressing the "insert x files" button, some seconds later an error message appear in the lower left corner:
We couldn't save your attachment
Reload the issue then try adding it again.
I aready tried to roload the issue, but it's always the same.