Dancing Tanks

[BoFFin]

I been kicking WrpEdit around for awhile, making a small island.

I have tested my island out with V 1.46 and the test mission works find.

However in V 1.75, the tanks/bmps go up-and-down, like its dancing.   They make a horrible noise at the same time.
The soldiers and trucks move ok, its just seems to be the armour.

(The island is a long way from completed, so sorry no pictures.)

Always, back to my dancing tanks, has anyone else come across this? And is it fixable?  (yes it is.... see below)

Edited:

Oops, I just remembered the fix.  

OFP Cold War Crisis missions don't work if called up through OFP:Resistance.

So, have to do the mission using the OFP:Resistance mission editor - to have tanks/bmp behaving normally.