# Description

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Camera obs are not set nor used in stack instance randomize envs. Aligns
stack instance randomize env with regular stack env by removing unused
camera obs. Fixes an obs shape mismatch error caused by improperly
initialized cameras.


## Type of change

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applicable. -->

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

## Screenshots

Please attach before and after screenshots of the change if applicable.


## Checklist

- [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
- [ ] I have added my name to the `CONTRIBUTORS.md` or my name already
exists there

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