Don't worry. Hostas do weird things once in a while to keep you on your toes. There is even a name for that phenomenon, but I forgot. I see those every few years on mine.

-Babka

One of my Stained Glass does that when it blooms too. I think it's kinda cool.

Fasciated scape...

I'd say it just wanted to see what was on the other side of those other hostas. Up periscope!

the plant itself looks like it MIGHT be planted too deep ... hard to tell with the mulch ...

ken