Livelink Vcam on 5.1 with iphone 8

Hi,

I’m using the livelink vcam app on my iphone 8 plus with UE 5.1.
It used to connect and work for up to 3 minutes and allow me to walk through the map with no problem. But now it’s started glitching out and the camera floats and swims in random directions, as if it has a mind of its own, and the app is constantly asking me to move my phone as it can’t seem to calibrate the phone’s location in the map. It’s to the point that I have no control once I connect, the camera is just swimming around, flying through the walls and doing its own thing.

Not sure if this is a connection issue, an issue with my phone, or a settings issue.

Any advice would be greatly appreciated, thanks!