Hi
I presume your raw project plays OK when previewed in VP. If so you could try this....
Backup your project first by:- File/ Backup Project Files To Folder This will save a copy of all the clips in your project along with a.vpj file to a folder chosen by you..
Now with the project (that plays OK) on the timeline, Click the Sequence tab and + New This will create a sequence of your project (in effect a single new clip) in the Sequence bin. and at the same time will clear the timeline.
Open the Sequence bin and load your new clip back to the empty timeline. Check it all plays OK.If so Export it.
Nat