Essentially you're getting the dodge in place bug.

BUT the dodges play the animation but do not actually move your player. It allowed the vanilla sneak button to be used as dodge, and allowed you to bind another key to the sneak key. V4.1 - Mod fixed that issue of not being able sneak. V4 - Mod works perfectly except it doesn't allow you to use sneak as it completely replaces the sneak key with dodge.

I've messed around with both versions and it seems one version fixes another thing but breaks another. To the very few who could get their hands on v4 and v4.1 of UDM such as myself, before all the unfortunate events happened to close the mod for the time being, I could really use some guidance here.