was taming my first 2 star this morning. got it in the pen just as the sun was coming up. i'd had a one star the other day, and as soon as i got maybe 50 meters away during the day it despawned, despite having begun the taming process. so this time i stayed in sight of the wolf. even though it wasn't frightened, it would not even begin to eat and start the taming process until the next night. the entire day it would try to stay as far from me as possible, always moving to the opposite side of the pen. once night came and it ate, it began to tame as usual. i still stayed in visual sight of it & it took two day night cycles, i think about double the regular wolves. once it was fully tamed it didn't despawn, but i have also not let it out of the pen for fear it may still run off. my understanding is that once you have the 2 star offspring, those offspring behave as usual without the risk of despawning.