environment step taking progressively longer over time #84
Description
Thank you authors for a great repo!
I am noticing that the RLEnvironment.timer_callback() is being repeatedly tripped after running the code for several hundred epochs. This will log 'Stop called' and frequently causing the turtlebot to stop before proceeding again.
After some digging, I am noting the DQNAgent.step(action) is taking progressively longer over time.
Do you have any guesses on why this is happening, and any fixes on this issue?
