Tactics Trainer

I have a problem with the Tactric Trainer hat I encounter often.

After two moves, when I make the correst movement, the trainer stops, and I cannot go on.  So I have to startall over again on a new round of tactics for anything to happen. Of course I get no points for that. The computer counts it as an unfinished exercise. Does anybody know that problem. Or has anybody encountered the same problem, and what can be done?

It's happened to me occasionally, but rarely. I think it has something to do with your computer or internet connection. 

Thank you for your answer. Iwill have to look into it.

I encountered the same issue just a few minutes ago

I think it must be something with the chess.com program. All other chess programs on my computer work fine. It works in *chesstempo*. I just wonder, what to do about it.

I have the same problem, and it has occurred for the last two or three weeks. I have tried two different web browsers.