Some information

Operating system: Windows 10 Enterprise
Java version: 1.8.0_51
Minecraft version: 1.12.2-forge-14.23.5.2859
Baritone version: baritone-api-forge-1.2.15
Other mods (if used): —

Exception, error or logs

debug.log
latest.log

How to reproduce

install 1.12.2-forge-14.23.5.2859
install baritone-api-forge-1.2.15.jar
run the game
write #blocksToDisallowBreaking

Modified settings

acceptableThrowawayItems dirt
avoidance true
blockPlacementPenalty 100
itemSaver true
blocksToAvoidBreaking CRAFTING_TABLE,FURNACE,LIT_FURNACE,CHEST,TRAPPED_CHEST,STANDING_SIGN,WALL_SIGN,stonebrick,grass,stone_slab,stone_brick_stairs,dirt
mineDropLoiterDurationMSThanksLouca 4

Final checklist

• I know how to properly use check boxes
• I have included the version of Minecraft I'm running, baritone's version and forge mods (if used).
• I have included logs, exceptions and / or steps to reproduce the issue.
• I have not used any OwO's or UwU's in this issue.

blocksToDisallowBreaking is newer than the latest release for mc 1.12.2 so if you want to use it you have to either build Baritone yourself or use a CI build from the Actions tab (or wait for the next release...).