When using silk touch on either a full sized red or brown mushroom, you will only receive the white ‘stem’ block and the mushroom block that has the texture of the inside (red mushroom) or underside (brown mushroom).
Linked issues
duplicates 1
Comments 7
Thank you for your report!
We're actually already tracking this issue at MCPE-34114, so we will resolve and link this ticket as a duplicate.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
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The blocks obtained from red mushrooms will also not stack with blocks obtained from brown mushrooms despite being otherwise identical.