UV mapping size incorrect?


I have a box type map assigned to a surface. the box size is 10000 on xyz, but when I check XYZ size i see 0,0,0.

I attached the file.
I have to point out that the UV mapping was done in R5 and I opened and saved the file in R6. The mapping box is still there.

190228 texture mapping check - r6.3dm (1.1 MB)

What is causing this?
Thank you!