Where are the Crowd Entities at Frame 1?

As Golaem relies on particles, it is dependent on Maya evaluation system. Thus, to be able to correctly fetch all information from the relative particle system, Golaem requires those to be updated at least once. For that reason, the crowd simulation can only start from the second frame evaluated. If you need to be able to simulate frame 1 (or even previous / negative frames), you can change the Simulation Start Frame within the Crowd Manager Node. When setting the Start Frame, keep in mind that simulation will only start from Start Frame + 1:

Simulation Attributes in the Crowd Manager Node