Even if mobGriefing gamerule is set to false, if a silverfish enters mossy stone brick, cracked stone brick or chiseled stone brick, it will change its texture to regular stone brick's.
Possible solution: Add 3 new "Monster Egg" blocks with the textures of those three blocks OR disable entering to/exiting from stone-based blocks completely if said gamerule is set to false.
This is NOT a duplicate of https://mojang.atlassian.net/browse/MC-7134
Linked issues
duplicates 1
Comments 2
Duplicate of MC-7449, please use the search function to see if your bug has already been submitted. Currently over 57% of tickets are being resolved as duplicate.
No, not a duplicate of MC-7134
It is, however, a duplicate of MC-7449