Issue
All Custom Types in an AS-P suddenly disappeared and it is not possible to create any new Custom Types.
When trying to create a Custom Type it results in an invalid Custom Type object:
Product Line
EcoStruxure Building Operation
Environment
Building Operation Automation Server Premium
Cause
For an unknown reason, the Configuration database has become corrupt.
Resolution
Workaround 1:
Do an upgrade of the AS-P to the same version which should fix this issue.
Workaround 2:
Restore a backup taken before this issue appeared.