what happened to chess.com tactics

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jbent02
Chess.com has worked really hard on there tactics trainer I got my rating to 1800 in tactics trainer then kept pressing for more, I reached 1870 and then they did some updates... tactics rating has dropped 150-160 points. does anyone else thank that the tactics are to hard for there levels?
Martin_Stahl

I haven't done any recently but maybe a bunch of new ones were added.