Global map shading fails when the terrain DEM is a reprojected raster

[nirvn]

What is the bug or the crash?

Reprojected raster layers representing elevation surface fail to draw global map shading content onto the map canvas.

Steps to reproduce the issue

1. Create a blank project
2. Add a DEM raster layer (CRS != pseudo mercator)
3. Open the project properties, insure that the project CRS matches the raster layer and set the project terrain to that layer
4. Add an XYZ openstreetmap layer on top of the DEM raster layer
5. Activate [x] global map shading, notice the shading is drawn on the map canvas
6. Open the project properties, switch the CRS to pseudo mercator, apply
7. Notice the shading fails to draw

GIF:

Versions

QGIS dev (3.31)

Supported QGIS version

• I'm running a supported QGIS version according to the roadmap.

New profile

• I tried with a new QGIS profile

Additional context

No response