Any ults that have 2 abilities(right now it is only Kelvin I think?) work weird with Sinclair right now. The example of this is Sinclair not being able to steal Kelvin dome while it is already cast. One easy way to fix this that I could think of is just specifically set what ability is stolen...
Just started a game on the new patch, at about 24 minutes my internet lagged and I got kicked out into the hideout and there was no reconnect button. I am 100% sure that the game didn't end because we were nowhere close to it and the match doesn't show in my recent games.