EXPORT Omits vocal track

Cubase 6.5 for Windows. 32 bit. On export the main vocal track is being omitted from export mixdown. Anyone else having this sort of problem on export?

Not to sound condescending, but…

Is it muted?
Effects muted?

Is it routed to the same op as the rest of your tracks?

Are you exporting non-realtime, and, if so, is the vocal track still record-enabled?

not muted , exporting non real time

again… is the vocal track record-enabled? (this will exclude it from non-realtime export).