Some information

Operating system: Win10
Java version:12.0.1.0
Minecraft version:1.12.2
Baritone version:1.2.6
Forge mods (if used):

How to reproduce

use the build command and have stairs in the schematic.

every time I try to build anything it will stop at random. and ant thing with stairs baritone will ether putt it in the wrong place or it will place it and break it.

Same

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hello?

There's an already reported issue with more detail, closing as duplicate.