Attached picture shows the PR2 scraper baffle when DRMI is locked.
Light blob from the right edge of the baffle hole is probably some scattering even though the scattering itself should be pretty weak.
What is strange is that the baffle hole looks offset to the left (west) by quite an amount.
I cannot prove that this is due to some parallax effect, but if anything the camera is looking at the baffle slightly from the east (right), about 16m away.
Anyway, there shouldn't be any offset, the hole is centered in the baffle (see D1000328 and especially Z-plate). If there is an offset, however, that agrees with the fact that the beam is close to the baffle edge AND that the beam was close to the center of PR2 when the clipping was worse.
We need to open viewports and see what's going on.