First of all, welcome to husky owners
Reality is, every dog will be different. We have 3, and have had similar kinds of issues in the past. Depending on what you are trying to teach, separating them to do so may not always be the best thing. Simply as you want them to learn whilst around the others, and not to only listen when there are not others around. I gotta say though, she is 10 week old. She is gonna play, and going to want to continue to play. Huskies will be like that in general, and it can indeed be a PITA when training and you have more than one. The only advise I can really give is to just persist with it. You will get there, it will just likely take more time as you have 2.
Examples with ours who are now older
Kimba - He will do things on command, as and when he feels like it. He can go from super obedient to completely deaf in under 10 seconds flat, depending on his mood. He is 10 yrs o;d now and things he is 10 weeks old.
Kaiser - He is obedient always. We let ours on the settee, and to give you an example, I can ask him to move to the other side of the settee to I can sit down, and he will. I don't even need to make a sound most of the time. I just walk in and point at the other side, and he moves.
Koda - He is quite well trained, but will do things when he wants to. Its almost impossible to train him with food. He is just a PITA with it. He will steal treats from the others. He lets himself out of his crate, and we had to get a CCTV camera to even figure out how he was doing it (the crate was still locked after he left it, which is where the confusion was from).
So you can see just from that, they are all different. Huskies tend to be very personality based, and very intelligent. They will learn, but when they don't want to do something, they won't. Hence why they shouldn't be offlead for example.