Derek Jones from Music Inclusive did a short video with a tip on how you can record both MIDI and Audio concurrently in Auria Pro. This is in addition to another method demonstrated by Quincas Moreira here.
An alternative method to recording simultaneous audio and MIDI suggested by user Kaikoo at the Audiobus forums. This time using the master track as a feed back into a second audio track. Yet another non-destructive bounce method demonstrated by Quincas Moreira can be found on his YT channel, using copy and paste of the MIDI before bouncing. Nice to have options eh! :-)