Is there a known issue with object position being incorrect in builds?

[rigid cargo]

Here is our track position in Unity, but in the browser, there is a noticable gap betwen track segments that is not consistent with in editor

[sand ridge]

Hello there – we have an experimental AI bot 🤖 that might be able to help you with your question. Would you like to try this out?

[cunning aurora]

No, there is not. One potential cause is that mesh compression may modify the mesh bounds, which is more noticeable (as in your case) on parts that are designed to sit flush.