For some reason the beam was lost in the SIS soon after taking the ESR beam this evening, reason unknown. Solved by sending teh full context to the SIS machine and having 
operators to manually set the voltage of the SIS extraction kicker. Afterwards a slight readjustment of the transfer beamline was necessary:

In the SIS: GTE5 KY1, MU0, QD21, QD22 as well as in the ESR: GE01MU4I (5 -> 6 mrad)

This brought back around 1E7 particle in the ESR after 5 accumulated SIS injections.