Hi, I think this is due to the 2D splash logo rendering in a world frame that approximates a head-fixed coordinate frame using the inverse of headpose, except that some noise is never fully eliminated. There's a new "Headlock Graphics" feature (Project / XR Plug-In Management / Magic Leap Settings) that will headlock the entire Unity app and display a stable splash screen, but that's quite a high price to pay for a stable splash scree 
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