You cannot craft polished grimstone slabs, stairs or walls.
What I expected to happen was...:
When you put grimstone in the stonecutter, you can craft all three items. This is what happens with other blocks, such as andesite or diorite.
What actually happened was...:
You can only craft the non-polished variants.
Steps to Reproduce:
1. Place a stonecutter down
2. Open the UI
3. Put grimstone in it
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We're tracking this issue in MC-215838, so this ticket is being resolved and linked as a duplicate.
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