In p02 the bot leaves to go back to a maintenance bay, to get some glitches (caused by the mold) checked out. After a bit of time, the mold (identified as a threat by the bot) got all the way into its sensors and processing. Causing a malfunction in it's threat detection. It basically detects threats everywhere now, even though it is smart enough to understand that a detected threat without organisms present is a false positive. When it passes through the vents below Desi's office, its wall/floor penetrating sensors detected threat + organism, a true positive, and went in to neutralize