Originally posted by ḾᶉḾĻǤҎŀãẏ:

- it turns out that in this screenshot: -Link- and there you can see that his teeth are black, -

No, we can't; That Google Drive item is private. After clicking on that link, I simply see "You need permission - Want in? Ask for access, or switch to an account with permission. [...] ["Request access" button] ["Switch accounts" button]".

Try to right-click that item in your Google Drive, then choose "Get shareable link" to make it non-private and also automatically be given the proper shareable URL, though your link probably already leads to the correct URL.

Originally posted by Zappy:

Originally posted by ḾᶉḾĻǤҎŀãẏ:

- it turns out that in this screenshot: -Link- and there you can see that his teeth are black, -

No, we can't; That Google Drive item is private. After clicking on that link, I simply see "You need permission - Want in? Ask for access, or switch to an account with permission. [...] ["Request access" button] ["Switch accounts" button]".

Try to right-click that item in your Google Drive, then choose "Get shareable link" to make it non-private and also automatically be given the proper shareable URL, though your link probably already leads to the correct URL.

https://drive.google.com/file/d/1RXxKeIcmiwlLsl0jABNdzzRHPSoTPs3A/view?usp=drivesdk

I fixed the problem with the black texture, it seems like the rules are with it, but I don’t know how to fix it with face animations.

Originally posted by ḾᶉḾĻǤҎŀãẏ:

-Image, showing a character opening their mouth, with one of the vertices of the lower lip extending up to the upper lip-

Move those vertices a bit farther apart on the base mesh.

Flexes (both DMX flexes and VTA flexes) are matched based on how close a vertex on the base flex is to a vertex on the model. If two vertices on the base model are in the exact same location, then only one of those vertices will ever be "matched", since neither of them are closer to something than the other and only the "closest" vertex is matched to a flex.