I'm less concerned about that than I am about the fact that 2 7|7 angles combined to make a 0|0 Chimera. Wut?
I instead think that something it's wrong about combining creatures with one or more aflatoxined results in a 1|1 malignant cell.
For the 0|0 facti think it's because i caught that exact moment of the generation of the chimera wich (i think) happens all the time when you do one or maybe just because the aflatoxin effect triggered in the same moment.