IPR losing the camera, when I only toggle a light on/off

[BeneZ]

Hello,

in Vray 5 in Max 2021 I have an issue, that I can't toggle anymore lights, which is the main sense of IPR in the Framebuffer, to compare lights.
As soon as I switch a light I get the standard Max perspective camera.

EDIT: I saw, that there are for strange reasons more than one "quad4" in the camera selection.

[fixeighted]

Sounds weird.
In any case, you can add a lightmix and switch stuff off/on, change intensities etc. with that...much simpler than toggling off/on in the scene and waiting for an update