Nidalee moving erratically when coming out of a bush (bug)/Vayne condemn causing bugsplat(crash) NSR

I laned top lane against a nidalee as kassadin and whenever nidalee would escape vision (aka going into one of the top lane bushes) when she came out of the bush she would slide across the lane quickly like the game was trying to catch up to where she was. it seemed to happen a majority of the times she went into the top lane bushes. I dont believe it was my computer in particular since it wouldnt happen with any champion besides nidalee. I also had my vayne from bottom say that later in the game her game would bugsplat whenever she condemned the wight camp (i forget what its new name is). I cant reproduce the steps since i wasnt playing vayne but i figured it would be better to report it all the same. Oh i should probably add that this is on the new updated summoners rift. Not the old one.