I thought I found a solution a couple years ago for this issue as an editor setting but can no longer find it in 5.7.
The issue is that when using Right Mouse to navigate for a couple seconds input stops being received and thus movement stops.
This appears to be related to continuous right mouse input. The same issue happens if I’m only moving the camera with right mouse and not holding keys.
UE focus isn’t being lost since the editor is still actively animating.
I tried using the AI assistant to help diagnose, but no luck.
Windows 11
UE 5.7
Razer Basilisk mouse