Hello Blurple! π
It sounds like you're trying to exclude a specific button from being affected by a template button. According to the documentation, if a template button has custom textures set, these textures are always shared with all affected elements. You cannot exclude individual buttons from this behavior.
You can learn more about this on the FAQ page under the question "Can I exclude certain buttons from a universal button template?".
I hope this helps clarify things! Let me know if you have any other questions. π