crop up

US /krɑːp ʌp/
UK /krɑːp ʌp/
"crop up" picture
1.

surgir, aparecer, presentarse

appear, happen, or come to attention unexpectedly

:
Problems always seem to crop up when you least expect them.
Los problemas siempre parecen surgir cuando menos los esperas.
A few interesting points cropped up during the discussion.
Algunos puntos interesantes surgieron durante la discusión.