The type builder update fails, if a category was selected before and was set to undefined.
Did some testing, your fix did’nt break anything in my environment.
As that issue did not occurred in my environment, can you please also check, if that is fixed in your environment?
Merged and cherry-picked in v.1.4 branch
I tested this fix for myself, it still breaks.
Changed the Jira Workflow from DATAGERRY -> DATAGERRY 2.0