I vaguely understand this may be related to the issue of articulations but would be grateful for your advice.

This is my problem. I would generate a very simple song, let's say, in 4 bars, using any midi style in BIAB with strings.

In BIAB, the default synth would play correctly the strings line. But if I change to another strings library, for example, any Kontakt library, then I can still hear the sound but the articulations or the way of the strings line is not correct anymore.

I am vaguely aware that I need to change something either in Kontakt or in BIAB or but do not know how.

The very same problem would happen if I drag the midi file from BIAB to Reaper.

Pls advise.