Trying to upload a JPG attachment, the upload works, but when you try to insert the attachment into the issue, we are given the error "We couldn't save your attachment Reload the issue then try adding it again."
DeviceBasedRecordingDatabaseEntitiesAndRelationships.jpg is the name.
795Kb in size.
1849x1304 in resolution.
Seems like a bug in Jira to me?