Authentication
It looks like, from the logs, it’s not authenticating with: rtsp://user:password@@192.168.1.131/h265Preview_01_main so you need to remove the double @ sign and make sure the username and password are correct.
rtsp://username:[email protected]/h265Preview_01_main
Adjust SHM Size
In your Docker Composer, I would add the service.
shm_size: '512mb' # Adjust the shared memory size here