I clicked randomly while I falling on a beacon, and I fall out of interactive range (normally the inventory closes). But beside it has closed, on the first try my overlay is gone. On the second try (where my overlay) has already gone away the whole game is black (but its not crashed) when I go into menu the world is in the background (but not updating) as I close my menu its gone away again.

I think when the client closes the inventory (I tested this currently only at beacons) it closes more than the inventory.