Kat Kled bug

I was playing kled a few minutes ago and I was up against a katarina, I was 1v1ing her which should have been an easy win. I was fed, she was not. I went into the 1v1 and she jumped on my and skarl instantly disappeared, Thinking she was just doing stupid damage i checked recap, she didn't ult until way after he disappeared, so it was just q and e (maybe w but didn't see it) did 600 damage (including w) but skarl had 1500 hp. That proceeded to happen 3 or 4 more times until we lost the game due to me never having skarl in fights she was in.