It is obvious also from your feedback that passthrough itself seems to work as expected again, but the latest build doesn’t solve the HRA issue. Please also see this for some explanation: AVR Onkyo TX-RZ820, DTS-HD HRA/Hi Res Passthrough Issue - #72 by Chillbo
So, we’re still trying our best to see whether we can find a solution to this problem and we’ll keep you posted. 