So I may have discovered something although it's minor, random and may have nothing to do with this patch. Heck, it may have been in since release.
If you spam spot dodge with certain characters and then try to jump, the game flat out won't let you for a certain amount of time. I first discovered this with my cousin earlier today and he saw me pressing the jump button and it not working. And no, my controller isn't broken since it works shortly after and it worked during our entire FG dubs session today. That being said, there's a few things to note about this.
I tested this with
and
and only
wasn't affected by it. I tested this on Omega Mario Maker, Omega Flat Zone X and Omega Battlefield and it seemed to happen more on the first two which happen to be 2D stages.
I'm gonna get my camera and try to record it and then I'll post it here. Again, might not even be patch related and the spot dodge seems to have to be spammed a certain amount of times. I tried doing 1 spot dodge and jumping and it worked perfectly every time.