Hi,
Let's try the exclusion method. Is what you see in the attached video the issue you are reporting or relates to it? "Resizing" can mean maximizing a window or "cropping" it by 10 pixels on each side.
Unfortunately not, its not windows edge snapping at play here. I have just managed on the off chance, to capture it. I tried to re-record at a higher resolution but i couldnt get it to happen again whilst recording.
This is the result of a single click on the vfb to bring the window back into focus.
It does not happen every time but as you can imagine, if youre waiting for IR to clear up so you can check something, and youre waiting a while. You very much might get on with something else in another window whilst its running.
So a single click to the VFB sometimes maximises it meaning you lose the VFB progress. This is especially annoying on high dpi monitors or in heavy scenes. I cant be certain but i think it may only happen when clicking inside the image itself and not on other areas of the vfb.