yes, i'm pressing Z to progress the text, and the spires are the first place i've come upon where i encountered this problem
It's strange, I checked the event but there was nothing that could make it repeat or open the save menu... I plan on releasing an update later today, so I'd suggest redownloading then. I also recommend starting a new game just in case something in the save is affecting this (you can easily skip the text by keeping shift pressed to reach the part you were at).
Once again, I apologize for the trouble, and thank you very much for letting me know of this problem! I'll keep note of it in case it happens again with the incoming update.