This is 100% cosmetic and I submitted an in-game bug report on it, but I'll throw it out here to cover bases. TL;DR is that that Minstrel personality's animations interfere with some of the animations which trigger in New Life.

For the ice plunge, the event animation should trigger a "cannonball" animation when jumping into the water; the Minstrel pulls up their legs, keep their arms straight, and generally looks like they have a stick up their nether regions (as they also do when mounting or starting a sprint animation; both are long-standing animation issues with this personality).

For the Lava Foot Stomp, they will sometimes just stand there doing their idle animation after using the event interaction and the player regains control after however many milliseconds the dancing animation is supposed to last. I've noticed this most often at the Fish Stink Tavern, so there might also be something about that particular location.

TBF, the flip side of "too cool for school" can be "pull that stick out of your backside" but still....