Only North-Facing cut-copper variants have correct texture rotation

All cut copper variants have alignment issues except for north facing

North facing stairs highlights and shadow textures align to the blocks properly as seen here:

However the other 3 sides do not

East: Upside down stairs have mismatched highlight/shadows, and bottom stairs have 2 shadow pieces together

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South is mismatched overall

West has mismatched on normal stairs, two highlights together on the upside down stairs
 
 
Same issue for full block and slab (Images attached)

This appears across all variants of cut copper