Here are some pointers in case the Spatial Workplace app is not able to scan your marker:
In case the pins are not shown in the correct order or do not appear at all in the Spatial Workplace app:
There are multiple reasons why the visibility feature might seem not working.
Consider the following points:
When adding/creating holograms, the selected parts/assemblies are merged and optimized to reduce vertex count and minimize the loading duration within the Spatial Workplace app.
If the optimization breaks the part resulting in holes and wrong shapes of final holograms, please change the optimization quality in the hologram settings in Spatial Editor.
This flickering effect occurs when at least two 3D parts are overlaying each other at the exact same position.
In order to prevent this Z-fighting, either hide/remove the overlaying parts or move the parts to have different positions.
Consider running the eye calibration on HoloLens again or reset your device.
To recalibrate, you can follow the instructions in the Microsoft HoloLens documentation.
The HoloLens 2 field of view is limited to 43° x 29° by design. This limited field of view might be smaller if the user wears the device in the wrong position.