Ah, that makes sense. You should only set an animation to be played on Server if you need animation related data on the server (i.e. you have collision that follows an animation or some such). 99.9% of the time, you’ll want your animations as client only (or Client/Server). There really shouldn’t be any case where you have Server only animation tasks. I’d swap to Client or Client/Server depending on the logic you are doing and see what that gets you.
I’ve been working on v1.6 which has a few bug fixes and I’m trying to support Blend In on external animations (and not just the ones passed into the node) in the Play Ability Animation Node (you’ll have to pass in a pose for it to work), I’m still testing things but so far so good.