Hey @YUNG.FIL — MRQ sometimes resets the LiDAR point-cloud cvars between frames, which spawns those chunky “square” tiles.
Try this in MRQ → Console Variables
r.LidarPointBudget 8000000 ; keeps full-res tiles resident
r.LidarIncrementalBudget 0 ; stops the auto-budget throttle
Add ±32 warm-up frames so the cache is primed. These two tweaks usually wipe out the random low-detail frames.
If you still run out of VRAM locally, you can throw the shot at a bigger GPUs via HyperRender . One click from MRQ, picks an A6000/L40S, and locks the same cvars per frame—no more artefacts.
DM for a test! Hope that de-pixelates your point cloud!