Your favorite bee mount Honeyback Harvester's Harness and a few similar mounts have received updated animations in Patch 10.2.7, allowing them to walk/run on the ground when not flying.
Affected Mounts
This update affects a handful of mounts, as they all share the same animations.
Unchanged Mounts
Despite having a very similar skeleton and model, the following mounts aren't affected by this change.