Yesterday I played à 2 player game with AO Azathoth.

The mistery Card was Omen of devastation for which you need clues to put on Eldritch tokens.

In the mythos phase we had Faded from society rumor. It put 4 Eldritch tokens on the mistery Card.

My question: is the mistery solved with the mythos card? And is the rumor then also solved?

The mistery Card was Omen of devastation for which you need clues to put on Eldritch tokens.

In the mythos phase we had Faded from society rumor. It put 4 Eldritch tokens on the mistery Card.

The Faded from Society rumor puts four Eldritch tokens on itself, not on a mystery.