I was briefly down and met with the Fledge watch team - gramma, pam and another very nice lady (sorry, I forgot your name). Vesper was sitting/walking on the west side of the MTS Centre roof. Then, suddenly, she took off, made a circle and dissapeared in the direction of the middle of the building. MTS has a quite complex roof, so plenty of ledges to perch on. Nobody could spot her since.
Hopefully, she will decide to show up so we'll enjoy her company again.