Units die whenever they jump in my tantive 4 map. I have never seen anything like this b4. Can it be fixed?

It could be the height. You may have a height that is lower than the map that is placed, unless its the default tantive, and when they jump, they die.

It could be something to do with collision. But I would first go with what Grev said.

Grev wrote:It could be the height. You may have a height that is lower than the map that is placed, unless its the default tantive, and when they jump, they die.

That will be it. I had that problem a while ago with my space map in conquest mode.

I placed tantive 4 objects at the height 500 and It is NOT the default tantive 4

SetMaxPlayerFlyHeight();
SetMaxFlyHeight();

Increase those two numbers in your lua until you can jump, then add ~ 150 to be safe.