[Strange Performance] Unusual Stuck While Running Apollo in Carla

[AOOOOOA]

I'm running Apollo(0.9.8) in Carla(0.9.14) using the official bridge provided by guardstrikelab (GitHub link) on ubuntu 18.04. I attempted to simulate a realistic driving scenario by adding multiple vehicles in Carla alongside Apollo, using the generate_traffic.py script from the PythonAPI/examples folder. Specifically, I added 20 vehicles and 20 walkers, setting them to safe mode to avoid collisions. Carla was configured in synchronous mode with a frame time of 0.05.

However, there are times when the Apollo vehicle gets stuck and doesn't resume in Carla, a problem that doesn't occur when running the Apollo vehicle alone. Is this behavior normal?

I've attached a sample video below for reference. If you need further information to reproduce, please let me know.

vehicle_stuck.mp4