When I take a BIAB file and open and generate within RealBand, the audio quality is inferior to that of the same BIAB file rendered in BIAB and then dragged track by track to RealBand. The sound in RB sounds very flat but the sound in RB when the tracks are dragged from BIAB after rendering in BIAB have much more presence.
Are there some effects being rendered in the BIAB track files that are not the case when the tracks are generated directly in RB?

I found the same thing when I dragged the files in Cakewalk by Bandlab.

The setup is as follow: Win 10 laptop 16 GB RAM, USB to Presonus Audiobox 96 Interface, output to BBE Sonic Maximizer, output to JBL Eon One Linear Array portable PA (mono). With Sonic Maximizer in or out of signal chain, the different sound qualities from Tracks generated in RB vs Dragged from BIAB are maintained.

Any explanations for this different in sound?
Thanks