Does purchasing a “license” resolve issues with completing the game?

When I played with a license from the publisher Nival a hundred years ago, there were no problems. But those weren't the gold editions, meaning all the games were separate. The gold edition itself might have these bugs. I advise you to either find fixes on the internet or play Tribes of the East with the All_Campains mod (available online and on our website in the file archive). It seems to work fine there.