Card Rulings talk:Chain Material

Contradiction
The OCG Ruling says that you can use "Chain Material"'s effect when you activate "Future Fusion". The TCG Ruling says that you cannot use the effect of "Chain Material" when resolving "Future Fusion".

It is possible that there is no contradiction. The TCG Rulings may be referring to the 2nd Standby Phase when you Fusion Summon the Fusion Monster with "Future Fusion". Both sides agree you cannot use "Chain Material" at this point. However, this is unlikely, since the TCG Rulings places "Future Fusion" in the same category as "Instant Fusion".