Tail Addon [v1.3]

Hello! Thank you for contacting me :D
Would you mind sending me any screenshot(s) of the problem? Cause, from the sounds of things, this is a bug/unintended feature.

(!!Quick Update!!)
Took a look around the files and found that the extras geometry is completely blank. So, you're not doing anything wrong, it is a bug that will be patched as soon as possible.
Thank you for bring this to my attention :D

If you're talking about the default 2D tail, there's a folder that contains everything you'll need. But if you've already read the instructions, then all you would need to do is to re-texture your skin to match with the example skin.

If you're talking about the 3D tail, there is also a instructions file you would need to read. To put simply, there's a extras folder in the Tail Addon folder; You would need to copy and paste the 'models' folder in the extras folder to the Tail Addon. If your phone/PC tells you 'something with that name exists already', tell it to continue. Then, you would then need to take the .bbmodel to a program called BlockBench, importing both your skin and the sample_skin2 file in the guides folder in the Tail Addon folder. Copy the sample_skin2's pixels as closely as you can. Once you finish, just save your skin, launch Minecraft and equip your skin.

And, you're done. Hopefully this helps! :D

Apology for responding late, I meant to get to this sooner.

Which tail version are you using? Both of them use your skin as their textures, just been placed where else. Kind of like Action & Stuff's blinking animation.

If you look for a folder called "guide", there'll be a texture called "sample_skin.png"; You would use that skin in any image editor such as Medibang Paint Pro, Blockbench, Krita, etc.

Now, relating to the bug, can you tell me what exactly experiencing?

Olá! Leu a embalagem e seguiu o guia que a acompanha? Este guia explica como tirar o máximo partido da embalagem.