I'm making a mod (Which will be revealed soon), and in it I decided to remove burrowing for all Zerg units. A few days after that, I changed my mind and re-added it.

All the other zerg units besides the zergling burrow with no problems. But the zergling has no 'Burrow' command, in fact it's been replaced by the 'Unburrow' command, and most of the zerg units are using the same command set.

I've checked Datedit to see if I unchecked 'Burrowable' for the zergling. I didn't.
I've checked a default firegraft command set to make sure I remade it correctly, And I did. I have no idea why the zergling is acting up, and I don't think it should...