I have “blind spot” with the Tracking. I sit about 120cm from the wall and my head while seated is about 105cm from the floor.
When I place the 8k X on my lap or I move my head forward close to the center monitor, it loses tracking. I have to hold it up and head height to get it tracking again. if I put 8k x on the floor behind me and to the left, it tracks.
Might have to try different placements for the Valve LH again.
I tried a placement of 140cm left and 80cm from the front wall. In this placement the headset tracked while on my lap.