Indeed it was suspenseful.
We tried finding where the clipping happened, but we couldn't find any obvious clippings.
So we checked centering of the beams on all the optics associated with the AS path, starting from BS, SR3,... to the AS optical bench.
And during the work some of them were recentered.
At the end we found no clipping. To make sure we tested the available range (no clipping range) by exciting the angular motion of BS with AWG (f ~ 1Hz, a ~ 1000).
The beam looked successfully coming out at the most of the angular oscillation point.
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Where was the AS clipping?! Ah, the suspense...
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