Tactics training - not remembering history

Hello all,

after recent changes to tactics I have encountered a new problem.
Sometimes I get the same problem again and get points for it!

I had this situation with problems: 61051, 61121, 61142.

Me too. But I don't think that's a big problem. Chesstempo has the same issue. Of course it would be better if they could fix it.

It's a feature: spaced repetition. You must've lost to those puzzles at some point, so you're going to see them a few more times until you no longer fail them. Additionally you'll only get half the amount of points you normally would on re-attempts.