When a mesh with a surface appearance is deleted and then restored using undo, the surface appearance loses all PBR-related properties, including color map, normal map, roughness map, and metalness map.
Normally:
After you delete and undo:
System information:
Windows 11 Home
Intel(R) Core i9-14900KF
NVIDIA GeForce RTX 4070 Ti
32 GB Ram
This still happens with no beta features enabled.