NP said ANVISA asked for some info on the use of IV bags, to ensure there's no particulate in the bag, and Cytodyn would get that info to them by today. Sounded like a tiny issue which has most likely been taken care of already.
Absolutely worst-case, they switch to 4 sub-q shots but I don't foresee any problems with using IV. Misui said they used IV for HIV patients a while back.