I have been noticing button presses on the controller are not working correctly a lot lately. In the video I press "LB" for my ultimate. You can see the press registers in the hot bar UI at the 0:06 mark, but nothing happens until I press it a second time. The same thing happens at the 0:16 mark with my "Y" button to use a health potion.

https://1drv.ms/v/s!AqVF2GkMmFmcnkHT7aZDXRUlwwMj

Another issue I am seeing quite a bit (sorry I don't currently have video for this one) is when using the "LB" for an ultimate the timer will reset, but nothing will happen.

EDIT:
Here is video of the timer being reset and my ultimate not going off. IT happens at around the 10 second mark.
https://1drv.ms/v/s!AqVF2GkMmFmcnkJdeuRCVgxuPixv