[otrs] Help: columns in dashboard corrupted

All, I updated OTRS 3.3.7 to 3.3.8 and now my dashboard columns are corrupted. - The title column shows the age in the new tickets widget - in another widget the title column shows the customer name, and the owner column shows the ticket number I tried deleting the caches, generating new cache, reset permissions, rebuild config, change theme, delete my browser caches, nothing helps! Hope you can help me. Regards Sander