@arthurfromberlin I tried that just now and IT WORKS! 🥳 But... can you explain in more depth WHY that works? I'm familiar with scheduling of systems from Bevy, so I understand that systems might be ticked at different times, but the query happens INSIDE the system, after my console log no less. I really don't understand why that would dictate when the system's update function is called. Thank you so much for the tip!

Interesting! I'm totally new to RealityKit (long time Unity dev) and was wondering if it was something like this. But it seems the docs insist "RealityKit calls every system’s update(context:) method every frame". Probably the docs need updating with visionOS, eh?