Could some of you check this out for me, please.
Is it an issue with my system or the RealTracks?

Using BIAB 2018 Build 513, I entered the chords for Jim Croce's Time in a Bottle and selected _CACTUS.STY as a suitable style. Then, when auditioning each instrument via the Solo button, I noticed dropouts in RT 2055; Guitar, Acoustic, Fingerpicking CountryWaltzBrent Sw 140.

To check this I opened another BIAB window and entered a I, iim, IV, V7 progression over several keys and found that RT 2055 only played the V7 chords.
I went back to Time in a Bottle which has some 6ths, min6ths, 7ths, etc. and realized that only the "numbered" chords were playing. To confirm this I randomly altered the other progression to include 6ths, 7ths, 9ths etc. and again only the "numbered" chords played.

This also occurs with;
RT 2054; Guitar, Acoustic, Fingerpicking CountryWaltzBrent Sw 110.
RT 2053; Guitar, Acoustic, Fingerpicking CountryWaltzBrent Sw 85.

I checked out the other Fingerpicking Waltz RTs (very few) and they seem OK.

Best regards
Vintage