exporting problem plugin cuts off

Hey Guys

I am running into a little bit of a problem with exporting the mixdown of a song I have been working on.
Cubase exports the Audio tracks just fine, but the tracks I made with some of my plugins just cut of after a couple seconds in the mixdown.
I use Cubase LE 7 with windows 10. The plugins I use are Realguitar and Realeight.
It allso varies how long it takes for the pluging track to cut off.
Sometimes a couple of seconds make it on the mixdown and sometimes only the first hit.
if anybody has an Idea of what I can do to fix this.

please help :blush:

Hi and welcome,

Make sure, you are not using any plug-in with a DEMO/Trial license, please.