I have around 40 tamed wolves. At one point I had to take Minecraft off of both internet and cellular data, therefore signing out of Xbox Live. When I signed back into Xbox live, using the same account, I was unable to tell wolves tamed prior to going off line to stand/sit, but a wolf I had tamed after I had signed back in was working as normal. Again, it was the exact same account as the one I had used prior to going offline. I don't know if this problem can be recreated or not but I would appreciate it if you could look into it.