Not exactly wait for it to get up.. like we did the runs the other day Jav, you need to get to the point where the Vular appear just after turning on the terminal and then more spawning,, it should have the counter as 19 left.. (provided you took the right side path first) if not then you know that you are missing some..

(After taking down the Vular at this part your counter shoud read 13 )

<----------------- Counter freak