This bug report covers two bugs for the sake of simplifying the reporting process as both were captured simultaneously, however they are separate issues that are likely not directly related to each other.
Summary
Incorrect Music:
The waiting music is from SDNL. While I’m not 100% sure if this was intentional, the waiting music has previously been from Minigolf.
Said waiting music continues to play right up until the race begins rather than playing the race start theme.
Upon reaching the final lap, the music continues to play at normal speed.
UNRECORDED - upon finishing the race, sometimes the music would play a sped up version of the normal track theme before going to sped up Lonely Gun attract music at the podium ceremony.
Upon finishing the race, a sped up version of Lonely Gun’s attract music plays in place of the normal music tracks.
Stiff Animations
Oddly, before the race starts, the character essentially only moves their arms despite traditionally leaning with the kart before.
The above behavior occurs after the race is completed as well; the character is almost completely stiff during the podium ceremony.
Curiously, not long after the race begins, the character will lean into their turns like normal.
Steps to Reproduce
Steps to reproduce these bugs are uncertain, this appears to be an integral issue with how music and animations are loaded.
What I expected to happen
Incorrect Music:
The waiting music would cut to the regular race start theme.
The track music would speed up upon reaching the final lap.
The appropriate music tracks would play upon race completion.
Stiff Animations:
The character would retain their normal leaning animations no matter what point of the race they’re in so as to not look woefully stiff.
What happened
Incorrect Music:
The wrong music was played at the wrong times, or unaffected by events that should impact the music playing.
Stiff Animations:
Animations not functioning made the character within the kart look uncomfortably stiff during certain portions of the gameworld.
Notes / Media
Some annotations have been added to accentuate (one of) the issue(s) the clip is demonstrating. The video is also sped up by 15% to help fit the video within file size limitations.