Can't compatible with Optifine!

[Absolves]

This mod is good! But it isn't compatible with Optifine.
The version of MC is 1.12.2
The version of SecretRooms is secretroomsmod-1.12.2-5.6.4
The version of Optifine is OptiFine_1.12.2_HD_U_E3
(The url: https://www.optifine.net/downloads )
The version of Forge is 1.12.2-forge1.12.2-14.23.5.2811
Explain: No matter what blocks of secretrooms I put beside other blocks in minecraft, it always become the stones.
I like this mod very much. Thank you for developing this mod. And I hope you can fix this bug at next version!