Rumble Ult Not Going Where Placed When Teleporting/Zhonya's [GAMEPLAY]

As a frequent rumble player, I can tell you that his ult is his most useful tool. It seems, however, to not work as intended when he is currently doing something else. By "something else" I mean things that make him need to channel, or put him in a state of something., such as zhonya's and teleport. When I go to teleport to a minion, turret, or ward, and I have my ult laid down ready to go off once I get there, it will show the falling animation on the spot, and my ult will go on cooldown, but it will not appear where it was supposed to go. This video isn't mine, but I looked it up after I had come across the issue and found others with a similar problem. As you can see, the ult either starts off where the original was supposed to end, or just goes nowhere near where it was supposed to go. To recreate: -Have teleport -Get Rumble to level 6 -Buy a zhonya's -Use teleport to a turret/minion/ward OR activate Zhonya's -As you're channeling to get there/in the zhonya invincible, lay down your ult near your landing area -Watch as it does not go on that spot

I'm hoping this can be fixed soon, and as the video is from October it seems either no one has been willing to bring this to light, or someone sees it as a minor bug and doesn't think it should be fixed right away. To someone who enjoys not dying in a 2v1 gank/4v5 team fight due to something that isn't my fault it is a big deal. I hope this can be resolved soon.