As can be seen from the image, the smooth stone slab has a different texture compared to the smooth stone, the two different blocks (the middle block and the first block in the last row) are more "yellowish", these are exactly the slabs.
MCPE-64225
Smooth stone slab with incoherent texture
Resolved
Duplicate
0
Manuel Junior
(Unassigned)
Unconfirmed
Android
1.15.0.53 Beta
Retrieved
Hi Manuel,
I had a search and it looks like an issue was raised for this a while back but wasn't super clear. I've augmented that ticket with the information you've provided and have attached your screenshot.
I'll get this one duplicated into that. Thank you very much for the report 🙂
If you want to follow it, head over to MCPE-54410
Ionic