Why custom 3D widgets do not work in collaboration template

Hi Guys,
I am working on an archviz project. I have created some 3D widgets with the variant manager. They work in other templates(first person and game vr) and work when I print the UI on-screen in desktop mode.
They do not work if I place my widgets as 3d widgets either for desktop or VR mode in collaboration template. The error messages I get send me to the BP_BasePawn function isLockedActor.

Did anyone have any luck in placing custom 3d widgets in the collab template?