Avatar vanished..... after update to Vers 7 in Oculus Quest no way to see hands or body

Hi - tried it now for days,

A lot is working:... OVRPlayercontroller ist working - can see a cube i placed under Righthandanchor - can activate all buttons and touch....

But when i place the localavatar in the scene - nothing to be seen.

I tried new project new scene new import of oculus integration.

Unity version: 2019.2.0f1  (hope that is not the reason... but also did not succeed with 2018 version)

Problem seemed to come from update of oculus quest to v7 - never before hat problem to see avatar.

thanks for help.... Marc