Expression Maps for VSL and Dorico 3.5

to make the grace notes at the beginning play, you should add a pre-roll to the timing in Playback Options. This has come up before, for instance here Dorico can't play grace notes in the first beat of the first measure

If the techniques are not taking immediate effect, it is quite likely that a previous one is not being cancelled (unless it’s an add-on) so Dorico is effectively reading as a combination if this makes sense. You can check this by putting in an “ord” (as you’ve been doing) and ensuring that you don’t combine techniques unless that combination is actually in the map-- for instance your marcato and ord together bar 17 is actually a combination. I suggest also having a look at the mutual exclusions in the Expression Map

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