The newest mod (and Minecraft) version.

1. When riding a Doggy, it never stops moving its legs even if it's not running at all. And its tails swing too fast when it's moving.
2. When trying to open its GUI by using a plank, its status changes (From sitting to standing or from standing to sitting).
3. Textures issues. After clicking the minus button when its texture is default, it shows purple and black.
   
   Many thanks for your fantastic mod and your will to fix these problems.

For number 3, @ProPercivalalb has already addressed this in #66, stating that it was intentional so that won't be fixed.

Now number 2, this is something I've been trying to fix and haven't been able to do so, this won't be fixed either unless I manage to find a solution to it.

Finally, number 1, the fast swinging tail can't be fixed, as this is a limitation due to the fact that the travel code is based on that of the horse's. However, I did manage to fix where the legs would continuously move even though it wasn't moving. Fixed in 7edfffd

OK, thanks anyway.