Silverfish griefing the map even if gamerule mobGriefing is set to false was SEEMINGLY fixed, but it's NOT!
If a silverfish enters mossy stone brick, cracked stone brick or chiseled stone brick, it will change its texture to regular stone brick's.
Solution? Add 3 new "Monster Egg" blocks with the textures of those three blocks.
Linked issues
duplicates 1
Comments 2
Duplicate of MC-7449.
Reopened MC-7134