Tub plunger moves but gets stuck
I have a brand new tub, was installed a year ago. Tried to use it for first time today to take a bath, but the lever would not flip down. Unscrewed lever, I was having a hard time pulling stopper out, but eventually was able to get it out. Seemed like there was nothing wrong, still bright shiny new brass. Put it back in. The lever closed partially, but not good enough, so I tried to pull stopper out again and now just seems completely impossible to get out. It seems like its getting stuck on something inside the pipe as I'm pulling, It travels slightly and than hits something and so I let go and repeat.. What could be happening.