I'm not sure this is even a bug or not but everytime there is a lot of younglings in a system most of them seem to (go) off to the other side of the galaxy and harass some system 4 hops away and be 70% dead by the time they get there. This seems to happen with all sources of Younglings - waves, preservation guardians, clusters, and roaming enclaves. Younglings would be a lot meaner if they stayed put.
There also seems to be some weirdness with target prioritization. This is just a feeling atm, and I know weasels are supposed to suck up missiles, but i have to constantly lead my ships around by the nose so that they attack the proper enemy armor type.
Edit by Keith: the f-word is not actually good for a safe-for-work forum : )