crop up

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

surgir, apparaître, se présenter

appear, happen, or come to attention unexpectedly

:
Problems always seem to crop up when you least expect them.
Les problèmes semblent toujours surgir quand on s'y attend le moins.
A few interesting points cropped up during the discussion.
Quelques points intéressants sont apparus pendant la discussion.