blessing in disguise

/blˈɛsɪŋ ɪn dɪsɡˈaɪz/

a situation or event that seems problematic or unfortunate at first but later results in something positive and pleasant

Examples

1. Being omitted from the World Cup squad was a blessing in disguise.

2. You stumbled and fell, but you had time to find the blessing in disguise because you learned what you needed to do to be a better employee.

3. However, Noether’s winter stint in Göttingen would turn out to be a blessing in disguise.

4. However, it may have been a blessing in disguise, as he was sent to a hospital far away from the front: there, he fully recovered, and was later honourably discharged, before the war ended in November.