Billboard Gui glitching up and down

[TriumphRBX (Triumph)]

For some reason, only with this model the BillboardGui jitters up and down a ton.

-The gui works fine on other models
-I’ve tried using an attachment and using that as the adornee/parent (the attachment was a child to several different parts for testing, none worked)
-I’ve tried removing the animations, didn’t change anything
-Parented the billboard to the model, primary part, other parts in the model. Nothing worked

The billboard uses scale for it’s size, stud offsets are only updated once and not touched again by any scripts.
Other billboards have the same issue with this model.

The model is the issue, but I don’t want to change the model, I want to find a solution to the problem so it won’t occur in the future.

[af_2048]

Could you please provide this model exported? For people to be more specific in their answers.
Thank you!

[TriumphRBX (Triumph)]

Chicken.rbxm (23.1 KB)

Here’s a model of the chicken as seen in the video.

BTW I deleted the unions for testing (not in the model provided, just as a side note) and it changed nothing unfortunately.

[af_2048]

Could you please include the billboard also?..
Or maybe a code that creates it?..
I have tried sample billboard on imported model, can’t reproduce the issue.
On the video I can see that this happens with not moving models also so animations are not required.
Thank you!

[TriumphRBX (Triumph)]

mobBillboard.rbxm (5.3 KB)
Here is the billboard as seen in the video.
I have found it to be an issue with every billboard on this model though

[af_2048]

Well, seems like “works for me”.
I parented MobBillboard to HumanoidRootPart.
Also set Humanoid’s HipHeight to 1 otherwise MoveTo does not work.
And set MobBillboard’s Adornee to model’s Head.

[TriumphRBX (Triumph)]

I just fixed my issue while you made this, & it WAS related to the hip height of the model! I had it set to 0 which caused the bugging out.

Also I don’t use :MoveTo (because the models and humanoids dont exist on server, I use a different positioning system) hence why the billboard issues occured for me.

I appreciate the help regardless!