That asset is indeed missing on the WGT server. It is NOT ozysouthpaw's computer.
I used the Play This Hole Now WGT facility and played KIA #16 and was able to re-create the LoadManagerError.

It is related to the position of the ball. That asset is needed for a shot from the right of the 16th green behind the mound as seen in this next image:

An in-game problem report was sent titled: "ATTN WGTIcon LoadManagerError"
This is a WGT problem, not a user problem.