• I have marked all applicable categories:
  • exception-raising bug
  • RL algorithm bug
  • documentation request (i.e. "X is missing from the documentation.")
  • new feature request
• I have visited the source website
• I have searched through the issue tracker for duplicates
• I have mentioned version numbers, operating system and environment, where applicable:

  import tianshou, torch, sys
  print(tianshou.__version__, torch.__version__, sys.version, sys.platform)

I am using tianshou 0.3.0 post1. When I'm trying to run the pong_ppo.py in examples (python pong_ppo.py), in the 100 epochs, the test_reward never change. Thus, the pong cannot play in the final Collector.collect().

Am I mistaking something?