Results on Hopper

Hi, I am hoping to train a policy on the hopper environment in brax. I noticed that there were no results on hopper that were reported in the paper, and no default parameters for hopper in the brax training iPython notebook. I tried using both the SAC and PPO hyperparameters reported in the appendix of the paper to train hopper, but was unable to get returns above 500. Visually rendering the policy showed the agent hopping a few times and then following over. I am wondering if the authors have been able to get getting results on hopper, and if so, it would be very helpful if you could share the hyperparameters. Thanks!