I’m having a problem on HoloLens where on rescanning a marker Vuforia sometimes reports the position relative to the camera rather than the world origin.

1. Using delayed initialisation, we initialise vuforia and then scan a VuMark, the position is reported correctly.

2. After disabling and then re-enabling the vuforia behaviour, and then scanning the marker again, occasionally (maybe 1 in 4 attempts) the marker position is briefly reported correctly but then immediately jumps to a position that seems to be relative to the camera rather than the world origin.

I’ve tried manually resetting the device pose behaviour and disabling/enabling the marker behaviour and using both TRACKED and EXTENDED TRACKED but the problem persists.

Logs from HoloLens 2 device

Unity Version: 2022.3.15f1
Vuforia Version: 10.13.3

Repro Steps

1. Initialise Vuforia.
2. Scan VuMark
3. Marker is found in correct position
4. VuforiaApplication.Instance.GetVuforiaBehaviour().enabled = false
5. Wait for a period
6. VuforiaApplication.Instance.GetVuforiaBehaviour().enabled = true
7. Scan VuMark

Expected: Marker is found in the same position as step 3.

Actual: Marker is found but the position is incorrect (sometimes), and seems to be a relative offset from the camera