# Description

In the Isaac Sim 4.5 release, ``TiledCamera`` produces incorrect
semantic and instance segmentation outputs when using instanceable
assets. With scene instancing enabled, only the first tile generates
correct outputs while other tiles produces blank data. This change
introduces a workaround for the issue by disabling instancing on the
assets when semantic segmentation and instance segmentation data is
required from ``TiledCamera``. This workaround introduces a small
slowdown in performance, but it's not significant when running with
smaller scenes, which is normally the case when using rendering.

Fixes #1946 

## Type of change

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

## 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
- [x] I have added tests that prove my fix is effective or that my
feature works
- [x] 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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---------
Signed-off-by: Kelly Guo <kellyg@nvidia.com>
Signed-off-by: Kelly Guo <kellyguo123@hotmail.com>
Co-authored-by: Mayank Mittal <12863862+Mayankm96@users.noreply.github.com>