• Forge Version: 36.1.0
• Mod Version: 2.5.3
• Ornamental version 4.4

No crash log

Ornamental adds stair, slab, door and sometimes fence/wall versions of blocks, such as diamond stairs or blackstone doors.
Snow Real Magic functions fine with most of them, but in the case of grass stairs it creates an odd visual bug where it appears darker and... greener. Occurs with all orientations of the stair