Initial Questions

• I have searched this issue tracker and there is nothing similar already, and this is not on the list of known issues. Posting on a closed issue saying the bug still exists will prompt us to investigate and reopen it once we confirm your report.
• I have verified that this issue occurs in a SUPPORTED environment, meaning I can reproduce this WITHOUT OptiFine, and without Bukkit+Forge server software like KCauldron, Thermos, Crucible, Mohist etc

Mod Version

2.6.1.

Describe the Issue

Title.

Conflicting Mods

N/A.

Crash Report

N/A.

Other Details

You also forgot a non-Red sandstone one it seems (I use LOTR's sandstone stuff, I keep EFR's sandstone stuff enabled due to it having a few blocks that LOTR doesn't)