I just tried that in the latest RB, BB, BBvst and they are not reading the Acid info.
I did let them know about this some time back.
You can import the chords into Reaper with the BBvst or open the SGU, MGU in Reaper
https://forum.cockos.com/showthread.php?t=245939
Biab Plugin Chords to Reaper
Biab SGU MGU etc.. to Reaper Region Chord Names Win\Lin\Mac

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RB-No-Acid-Info.png (136.32 KB, 24 downloads)