Testing the “position tracking” python example from SDK 5.3, it fails: the translation is always 0.0, and this warning appears frequently:
[2026-05-27 18:22:34 UTC][ZED][WARNING] Initial IMU prior rotation seems to be wrong, resetting positional tracking with a better prior.
if imu fusion is turned off, it works, if GEN 1 is used with imu on, it works.