high res digital output stopped working

As of a recent Node 2i software update, I am no longer getting high-res coax output from the Node 2i to my external DAC using the Bluesound app (on an iPad) from either NeilYoungArchives (was 192 kHz, now downsampled to 44.1) nor Tidal (all MQA and other high-res content now output @ 44.1).  Oddly though MQA from RadioParadise still outputs at 88.2 kHz as before using the app; and if I use the Tidal app with Tidal Connect, that also works. It's only the Bluesound app that has stopped passing high-res through for some sources.  Any ideas out there?  I have iOS Bluesound app version 4.4.0 and BluOS 4.4.11.