Updater: Check for expected files

Attempting to update to 13.0.5 via Updater.

Initialization step reports error message:

The following extra files have been found:

  • assets

Extra Info:
When I try to upgrade via OCC, get message:

Nextcloud is already latest version

But the web app says there is an upgrade from 13.0.4 to 13.0.5.

Just remove the extra files and try again.