If they are starting now to investigate, it means that when troubles were occuring, or even when Julia H. gave her demission, they didn't care enough to investigate thoroughly (perhaps they have other priorities, that's just a fact).
This in itself is not good looking, and I feel that from there whatever really happened, they won't have the full version anymore (one of the party is already out) and they will have a huge incentive to go into damage control mode instead of genuinely trying to make the situation better for both parties. Especially, the more they do, the worse their image would be on the PR front ( I hope they do whatever is fair anyway, but the balance is tipped).