UploadWizard: REL1_33
MediaWiki: 1.33.0
Client upload speed: 0.28 Mbit/s
File format: webm
File size: 8.2 MiB
At ~ 60% of upload progress, indicator stops progressing and ends with only "Error" note.
No record for that time at php_error.log
No record for that time at apache_error.log