Can't push after adding a new subinterface to newly created vsys

[Alterhut]

Hi folks,

I newly created a new vsys for my ha-pair in my panorama. I have also created a new device-group but only use a single template for both vsys.

I've tried to create a new subinterface in my new vsys. The interface is already connected to my first vsys. The commit on panorama works fine. The push to the device ends in a "commit failed". Here is a snippet from the devsrv.log:

<< (vsys3)>>
Error: unknown interface ae3.826
<</ (vsys3)>>

If I try to manully to configure the interface on the fire, then i get this message: set failed, may need to override template object ae3.826 first

it looks like the firewall knows the templete but doesn't roll it out. Panorama and firewall running 11.0.4-h2.

Is there a log or a menu in the gui to get more information?

Greetings