The answer is blowin' in the wind...

After PR2 fixing work, the both beams were finally found at X end.
For green, I had to rotate PR3 in minus YAW direction by some hundreds of urad; PIT had not been changed so much. When the green was found, PR3 oplev was out of range in YAW.
For IR, I had to first rotate PR2 in minus PIT direction so that the beam spot positoin at PR3 was not too low. Then I swept PR3 in a random way and finally found it.

Tomorrow, I want to check the beam spot position at PR3/2 and adjust them to finalize the PR2 angle. After this, VIS people can finalize PR2 OSEMs.