For quite a while, slabs have appeared to be darker than full blocks when placed, unless a light source is placed near them.
This may be a duplicate but I could not find another report on this. Also, I have only seen this on Xbox One, but I am assuming that it affects all Bedrock platforms.
MCPE-140341
Slabs appear darker than full blocks
Resolved
Duplicate
0
Daniel McHale
(Unassigned)
Unconfirmed
Multiple
1.17.11 Hotfix
Retrieved
Thank you for your report!
We're tracking this issue in MCPE-54410, so this ticket is being resolved and linked as a duplicate.
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