I updated Inkay using the HB App Store in Aroma to v2.3.
After that, I ran into Error JXT-598-0069 when I opened Miiverse, so I followed the instructions here: https://pretendo.network/docs/errors/JXT-598-0069.
I also pushed the button for the BOSS task thing in Inkay, and my console restarted without issue.
I've also made sure to install the RCE patches.
Is there anything I'm missing? My Wara Wara Plaza is still showing default Miis and messages.