Torp Bombers Stuck In Air

In the replay around the 27 min mark I get a t2 air factory and give it a way point to the left. I had torp bombers queued in the factory and when they were built out of the factory they got stuck in the air instead of flying to the way point. I was wondering if this was a known bug or if there is some way to mitigate air getting stuck when built. Thanks for the help in advance!