Designer
References not fixed during restore where components need renaming (solution/bundles)
Workaround: Correct all parent/child references manually and redeploy solution
Solution configurations cannot be set to an empty value
Workaround: Set value to single whitespace " ".
Old backups from other solutions found in list of backups
When deleting solutions the Designer does not delete corresponding backups (saftety reasons).
In the future a list will be implemented to browse older backups, but untill hen you should just ignore this issue.