Hello !
I’ve been running into a problem this morning. I have a piece with string orchestra and piano. Two cellos. Cello 2 the playback is correct but cello 1 for some reason the articulation do not change anymore. I use Cinematic studio solo strings, I have custom playback template and I checked every obvious thing like expresion maps, does the play timeline show articulation change.
I’m using the latest dorico with on macos bigsur
Did anyone run into this problem ?
More frustrating is that it happens only in some places in the piece. A little like if the midi data was corrupted at that specific spot.
if you could post part of the project which shows the problem, I should be able to see what’s going on – I have all the current CSS libraries
maybe you are using combinations of articulations at those spots, which are not covered by the expression map (e.g. legato and accent…) 
Thanks a lot to all of your kind responses.
I found what seems to be happening happening and found a workaround for now.
In CSSS, when you want to make a double stop, you have to turn off the legato which these is a CC change atributed to that. Thing is doing that seems to be doing a weird block of further articulation change. I don’t know why but it is happening much more in the cellos it seems. I tried it both as an Add on and Base. There also seems to be a problem around Con sordino sometimes also more often in the cellos.
Seems a little strange but for now the workaround is to not re-engage the Legato after the double stop. It’s not perfect but close enough for now.
Thanks again 
the most reliable way I’ve found so far for double stop in solo or chords in orchestral strings is to create a specific p.t which I’ve called “multiphonic” and put it into an add-on with CC58,81. This way it shouldn’t clash with anything and does seem in my experience to be reliable. I prefer to disengage it with “homophonic” immediately after the double stop (CC58,76) which does seem reliable
Con sord should also be assigned as an add-on as this is a global setting across all patches. Here B0,127 (on) and 1 (off) seems to work best.
if there’s anything else specific, let me know (I could also post my own EM so you can compare)