It seems that meshes, both static or dynamic, are not included in the physics simulation unless you load them first.
Example:
sync on
sync rate 60
phy start
make object cube 2,10
position object 2,-20,10,0
phy make rigid body dynamic mesh 2
make object cube 3,10
position object 3,20,10,0
phy make rigid body dynamic mesh 3,"cube.mesh"
phy delete rigid body 3
phy load rigid body dynamic mesh 3,"cube.mesh"
make object box 1,150,2,150
position object 1,0,-30,0
phy make rigid body static box 1
color object 1,rgb(128,0,128)
do
text object screen x(2)-75,object screen y(2)-55,"Normal dynamic mesh"
text object screen x(3)-75,object screen y(3)-55,"Loaded dynamic mesh"
phy update
sync
loop
Theory is when you know something, but it doesn't work. Practice is when something works, but you don't know why.
Programmers combine theory and practice: Nothing works and they don't know why.