Blender crashes when in Material Preview mode (v.2.9)

This started occurring in Blender 2.82 and so updated to 2.9 and ensured my computer was up to date also. It seems to occur when I switch to material preview mode.

When pressing “Z” and selecting “Material Preview”, Blender will spend some time calculating and loading the scene. Once it does this it then crashes the application.

Is there a way I can diagnose what may be causing this, please?

System Information
Operating system: macOS Catalina 10.15.6
Graphics card: Radeon Pro 560 4 GB Intel HD Graphics 630 1536 MB

Blender Version
Version 2.90.0 (2.90.0 2020-08-31)