Template prevents libreoffice 6.2 from starting

Since I upgraded to Ubuntu 19.04 and Libreoffice 6.2.2.2 I can open existing documents, but when I start Libreoffice from commandline or by doubleclick it is just hanging.
When I delete ‘registrimodifications.xcu’ in ~/.config/libreoffice/4/user/ it is working again.
When I set my template as default template and restart libreoffice it is hanging again.
When I try to open my template, libreoffice hangs, I jhave to kill the process and remove the lockfile.
When I try to search my template in ‘manage templates’, it crashes and I need to delete the lockfile.

Any hints?

Any hints?

File a bug report.