Certain sounds not exporting (nexus) problem!

[K Front]

Hello guys.. I feel a bit of git coming on with a problem after not being on here for so long but if anyone can help that would be much appreciated !

Right.. Im trying to export a mixdown of a whole track and 4 midi channels running nexus for some reason are not coming through on the audio mixdown. They play in the open project but not on the mixdown. But if i select 'Stereo Out' I can export just those channels, but not the whole track? So i figured ill export them through 'Stereo out' and bring those channels in as an audio file, again plays fine in the project but when i export these particular sounds still dont come through on the mixdown of the whole track. Its as if it doesnt like these particular sounds? Its weird because other channels using nexus come through.

Any suggestions would be great !

[K Front]

Ahhh shit sticks, ill never get to the bottom of this!

[MARK ANXIOUS]

would be nice if ya told us what daw you're using :)

[K Front]

Nuendo..