Dehaka’s Roaches, Igniters, Hydralisks, and Ultralisks are unable to cancel their birth animation when they start moving. The entirety of their birth animation will play even as they are moving, causing them to not move their legs for several seconds after creation. The result looks incredibly awkward, with them gliding motionlessly across the ground with their legs not moving.
Most Zerg units have provisions set in place in their actors, which cause their birth animations to cancel the moment they start moving (such as due to a rally point). However, these three units of Dehaka’s are missing the relevant line of code:
The necessary line of XML code:
<On Terms="UnitMovementUpdate.*.Walk; AnimPlaying Birth" Send="AnimClear Birth"/>