Every pokemon adamant in holon

Hi everybody. I’m playing with version 1.2.3, currently delta hunting in holon. All the 10 pokemon that I caught so far turned out to have Adamant nature (deltas and regular alike). Am I just experiencing a very unlikely coincidence or is it a bug that happens to other people too?

Thanks for helping!

The first Pokemon in your party probably has the ability Synchronize and an Adamant nature. Synchronizers are useful to get Pokemon with the nature you want, but if you don’t want Adamant change your lead.

Omg. I didn’t know about that. Thanks so much