All objects sank into ground. What happened?

[VMX_SKYmx99]

I have no idea what caused this, but I had all my objects placed on an SX.  I reloaded a flat perimeter tile so it would match up to the main tile.  I got to reload my tex and all my objects have sunk into the ground about halfway.  Does adding a perimeter raise the ground up a little bit?  If so can I raise all the objects at the same time in the scn some how?

[MX45]

You sure you didnt change the brightness at all in photoshop?

You could just ctrl+click on each object, the hit the + and raise them all.
Maybe there's a better way using d2 though.

[VMX_SKYmx99]

I changed the perim from 0 to 64 in PS.  To match the base of 64 that was already on my main disp.