Suddenly came up, as an issue

AROSE

Think of a word that means "emerged unexpectedly," like the sun at dawn or a problem during a meeting.

The clue plays on the double meaning of "arose." Literally, it means something suddenly appeared or emerged, like an issue popping up unexpectedly. The word also fits because "arose" is the past tense of "arise," which aligns perfectly with the idea of something coming up without warning. It’s a straightforward definition with a slight nod to how the word itself mirrors the action described.