Hi, just purchased pre9 for my new pc and wanted to finish editing a pre3 project. Loaded complete folder of old pre3 project and opened it in pre9. All looked fine, it runs, I can do my changes but it will not render anything other than the changes and the usual red bar stays on everywhere else. Did try reloading the whole project folder again and now notice the unrender(?) bar is present from start and will not render. Any ideas please :-)
In my books, I very much recommend against opening an old version project in a newer version of the program. IT nearly always leads to some kind of buggy behavior.
And that leap from version 3 to version 9 is a particularly big one!
I very much recommend you finish the version 3 project in version 3 and then start a new project in version 9. Otherwise, there's probably no way to fix these kinds of issues. Sorry.