How to reproduce:
1. Download and open the attached "SSP_Tilemap_Forum_Bug" project
2. Observe the "Tilemap" GameObject in the Scene view
Expected outcome: The "Tilemap" GameObject is white
Actual outcome: The 'Tilemap" GameObject is red
Reproducible with: 12.1.12 (2021.3.31f1), 14.0.9 (2022.3.11f1)
Fixed in: 15.0.0 (Tested with 2023.1.0a8)