Have a look at MEL 34-10-02B ADR 2 which tells us that "if ADR 2 is set to OFF, and if the ac is in Conf 1+F, the SFCS No2 Flap channel is unable to cross check the CAS coming from ADR 1with the ADR 2 CAS coming from SFCS No 2 Slat channel/ This may lead to uncommanded flap retraction during the take-off.
Although not strictly what is being asked here, this makes it obvious, as FD says above, that you never quite know what is going on during multiple failures. You just have to play the cards you are dealt.
Not helpful, I know, but we have all been there!!