"Clicking" with the atlas in hand when playing the Vivecraft VR mod does nothing. The closest you can get is enabling the HUD overlay, which does indeed show up while the atlas is in hand, but there's no way to actually open the atlas to scroll around, place markers, etc. I don't know exactly what would need to be done to add this functionality, but it would certainly be fantastic to be able to use Antique Atlas while playing in VR!

Please try if the issue persists in 6.2.0

Given I don't have access to a VR, I don't see, how I could reproduce the issue and fix it.

If you want I can help debug it. I have access to VR but you will probably need to help me setup the debugging stuff.