# Job rejected due to not a valid resource class with machine image ubuntu-2404:2026.02.2

**URL:** <https://discuss.circleci.com/t/job-rejected-due-to-not-a-valid-resource-class-with-machine-image-ubuntu-2404-2026-02-2/54445>\
**Category:** Bug Reports\
**Tags:** circle-yml\
**Created:** [March 9, 2026, 3:23pm UTC](https://discuss.circleci.com/t/job-rejected-due-to-not-a-valid-resource-class-with-machine-image-ubuntu-2404-2026-02-2/54445 "2026-03-09T15:23:05Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![ahmedwab](https://sea2.discourse-cdn.com/circleci/user_avatar/discuss.circleci.com/ahmedwab/32/35746_2.png) [@ahmedwab](https://discuss.circleci.com/u/ahmedwab)\
**Post date:** [March 11, 2026, 8:16pm UTC](https://discuss.circleci.com/t/job-rejected-due-to-not-a-valid-resource-class-with-machine-image-ubuntu-2404-2026-02-2/54445/3 "2026-03-11T20:16:08Z")

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Hi, these image names were meant to be internal and weren’t intended to be used directly, they got picked up by our indexer when they shouldn’t have. They’re designed to be called via the `docker-docker29` alias rather than by name. The image will still be able to be used directly using `ubuntu-2404:2026.02.20` in the meantime. We’ve added a flag to prevent images like these from being indexed going forward unless they’re explicitly intended for direct use.

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_[View the full topic](https://discuss.circleci.com/t/job-rejected-due-to-not-a-valid-resource-class-with-machine-image-ubuntu-2404-2026-02-2/54445)._