Just an example for one of many delayed notifications: An admin of the opposing team accepted a challenge and reported the upcoming match:

I've took the screenshot right after the notification about this match came in ... thirteen minutes after the report in the forum.



Variants are the best is a regular participant in ONE WORLD League Multi Club Arenas. Right after today's challenge, I've got the following message via the pop up menu:
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A few minutes later the club asked for a challenge as they want to continue participating. I've sent another challenge and the same message appeared immediately. What's this?
By the way: Would be great if accepted/declined challenges to Multi Club Arenas could be checked with Club Audit Log, wouldn't it?