Same problem here. First beat is not playing when triggered via track notes, but plays fine when playing the pattern via keyboard. Typically that's the kick drum on the 1 that's missing. I noticed this first on Phat, using the Hip Hop and Rnb 103 bpm RandB pattern, playing Verse 1 on C3. Unfortunate...

Anders, congrats on the release of Sequences! Quality software, and a ton of fun to play with. My first experiment was to stack two instances of Sequences, one for the melodic pattern and another one to change the octaves on the fly. What came out was a really interesting result (aka happy accident)...