I was trying to create tungsten from white antimatter and was having some issue. It turns out that there is one recipe for two antimatter creating 5 SiO2, and another for one antimatter having a small chance for tungsten and a larger chance for SiO2. This holds true for the other antimatters. I believe this may be a crafttweaker issue rather than a mod one, but I though to post here anyway.

This has been fixed in v0.4.14 which I uploaded an hour or 2 ago, though i’m unsure if it has been synced to the twitch launcher yet