Be careful of what you import. I have two machines with wow on it. One has the oldest pre 3.0 version the other has been updated daily to the latest 3.0.17
I decided to import several sequence from the boards and try them on both machines. The ones on the older versions seemed to work. Not all the ones on the 3.0.17 would work and would produced errors.
Looking at the ones the didn't work I am surprised that they did on the older version. Most of them seemed to have logic flaws or would lockup on the wrong combination of /cast or /castsequence. Probably a lot of errors that i didn't notice.
So the old version seemed to be more forgiving and do things that might have never even actually been sent to the wow servers or even rejected and you might not notice.
The new one on the other hand seems to want you to correct your mistakes before hand.

This is by design. Its good to hear that its working properly. Having said that though 3.0.17 has a few issues that it should be more forgiving on. Working through that now.