3rd Person View problem

i got a problem with my 3rd person view.
It goes well when the ground switches with "Cliff Level" then the camrea moves up or down. But when the unit goes into a hole or rise that is done with the "rise tool" the camera do NOT go up or down. And sometimes you can't se the unit... How do I fix this?

I use a periodic trigger for mine. At the end of it, I use If/Then/Elses to detect special regions where the camera won't normally work.

If - Unit is in region "high terrain"
Then - Set camera properties so it's viewable good.
Else - NA or Do nothing

ohh, I get it...there is no thing to make it detect it for itself?