I'm attempting to transcribe a marching band score in order to compose its percussion parts using VDL2, so I started a new document with the VDL Template 7.0, and added flute, clarinet, alto sax, trumpet 1, trumpet 2, horn, trombone, baritone, and tuba from the "band instruments" selection in Sibelius 7. All of the horn parts played back, but the tuba and baritone did not (because they used the same patch: Bb Tuba) until the & of 3 of their first full measure; tapping the notes with the cursor or using the directional keys didn't result in playback either...until the & of 3. I also observed that when I removed the articulations (an accent on the half note covering beats 1 and 2, and a staccato on the eighth note that fell on beat 3) the notes played back fine. However, the note on the & of 3 had a tenuto, but it played back regardless! And of course every note after that played back fine. (see attachment)
I also made a few observations:
1) If I change the playback configuration from the one I normally use for VDL (one instance Kontakt, one instance Sibelius Essentials) to Sibelius 7 Sounds, the tuba and baritone do not play back at all. However, if I save the changes, quit Sibelius, and then re-open the program and score, all instruments, including the tuba and baritone, play back perfectly.
2) If I change the playback configuration BACK to the one I normally use for VDL, it now does not play back the tuba and baritone at all, articulations or not. However, Sibelius' mixer does pick them both up in the equalizer for some reason.
3) A few times throughout this process, Sibelius has abruptly crashed.
This is a very confusing, irregular issue, any help would be greatly appreciated!