Rengar bugs

As a Rengar main I have encountered some bugs during my time of playing. One bug that is rather annoying when playing with friends is that the ultimate cooldown is not displaying the proper value to teammates. When playing with friends they will sometimes yell at me for not using my ult because it shows for them it is off cooldown but it still takes a couple of seconds for me. (this might have to do with CDR (I do run CDR runes as well)) Secondly when jumping from a bush or ultimate to Illaoi tentacles is a nuisance. When standing in river topside bush there is sometimes a perfect oppurtunity to jump to a tentacle but instead of jumping Rengar just makes a weird hop leaving him halfway to the tentacle. (I believe this is always the case but it might also have to do with the tentacle being close to a wall. But it is a really weird and annoying interaction. Finally I have a suggestion for the game although I am not sure that really belongs to the bug report segment. Recently you have the option of changing around the order of champions when pressing tab so that your top laner is at the top in the list etc. With dynamic queue it would be awesome if the game did this on his own because the roles are pre-assigned. I know some people swap lanes but it is still a higher percentage accuracy then having a random order. Thanks for your great game.