As the title says, and yes it is the most recent version, whlie doing a manual backup of saves the launcher is failing. It crashes during the backup and then when you load it up the latest backup is shown as 0.0 MiB for actual size. Currently running on 0.E+ game version 10883, though I think that shouldn’t matter.
Edit: Happens everytime when doing a manual backup, and sometimes when doing an automatic backup for instance on closing the game.