The 'Capture a Premium horse with a Pattern' quest doesn't seem to be working for me.

I've done the breed approvals on several of my wild horses, some patterned and rated P, but the quest is still there.

Just through a quick search, I don't see any freshly captured P+ wilds with patterns in your stable. Did you FR them or have you possibly just not caught any?

I just completed this yesterday, worked totally fine for me.

Ok, thanks. I thought it would work for unrated horses caught previously, similar quests I've done in the past have worked that way.

Any and all capture/breeding quests require you to capture or breed the horse after the quest has shown up on your list. They won't go back in time to horses you've already captured.

Ok thanks. I've only now got an upgraded account so it must have been a while after I caught the horse that I tested it with only doing 3 per week, that's why I thought horses caught before the quest counted.