Hey there.
I’ve got a 60+ pattern song in wich one features only piano.
If I just play the pattern everything sounds as it should, tho’ if I play the whole song the first 2 or so notes of that pattern just wont play.
I just CANT figure out what this could be, I tried entering them in an other track and an new pattern but it just doesnt seem to work 
Anyone?
Some VST’s need to warm up, if you know what I mean, Try adding a blank pattern to the beginning of the song that has a chord with no volume, so it’s not audible to the listener. just make it short like 2 steps and add a pattern break (FB00 in the effects column.)
Im using the vst in an earlier pattern and Ive got not problems with that one
thre could be various reasons for this.
one of the possible explanations, the most likely to be exact, is that there is a (hopefully configurable) maximum number of concurrently playing voices for the instrument, which gets reached if you play the song from beginning.
since you say that you are using a piano instrument, there are chanches that you have the sustain pedal (MIDI CC#64) switched on, so the notes do not get switched off when a new one is played on the same column.
if you are using Native Instruments Kontakt for this song, I can be more precise in the help.
right, I’ve also accidently used the wrong instrument for a couple notes in a track where I should’ve changed to another instrument(having 2 or more versions of the VST loaded) and it will make it cut out or only play one of the notes if it’s not polyphonic. So it’d be a good idea to make sure you haven’t done that either, it can be easy to overlook sometimes.
Thank you again!! O 
I shouldv note offd them in the previous pattern indeed, I love you man 