Hmm, that’s from the animation system - not from Able. It’s saying you can’t transfer that AnimMontage over the wire. Able doesn’t pass that information, but the Character Movement Component does so I wonder if that’s what’s complaining.
Dynamic Montages in general aren’t Net safe because they are dynamic (meaning you can’t just pass an ID and have the Client look up that animation since Dynamic montages are made on the fly), so you’d need to either make that a single animation or remove root motion and replace that with some impulse.