# Description

This PR fixes the sb3_ppo_cfg for task Isaac-Ant-v0

the parameter before had 4096 num_envs + horizon 512 + batch size 128 +
n_epoch 20,
that means the training one cycle it needs to for loop (20 * 512 * 4096)
/ 128 = 327680 times!

which appears as if it is hanging forever

the new config matches more closely with that of rl_games.

I verified it will trains under 5 min 

[Screencast from 2025-10-15
13-56-21.webm](https://github.com/user-attachments/assets/2bc7bcd8-0063-46b9-adb0-67a6aa686732)

## Type of change

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- Bug fix (non-breaking change which fixes an issue)

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## Checklist

- [x] I have read and understood the [contribution
guidelines](https://isaac-sim.github.io/IsaacLab/main/source/refs/contributing.html)
- [x] I have run the [`pre-commit` checks](https://pre-commit.com/) with
`./isaaclab.sh --format`
- [ ] I have made corresponding changes to the documentation
- [x] My changes generate no new warnings
- [ ] I have added tests that prove my fix is effective or that my
feature works
- [ ] I have updated the changelog and the corresponding version in the
extension's `config/extension.toml` file
- [x] I have added my name to the `CONTRIBUTORS.md` or my name already
exists there

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