SageMaker Studio (new domain): list views not showing all items + sorting/filtering issues

### Product Category

Pipelines

### Question

From within the newer SageMaker Studio domain, several list views aren’t behaving as expected:

**Pipelines**: Not all pipelines are displayed.

**Training jobs**: Sorting by Name appears to sort by Last modified instead. The total count is capped at 50 (10 per page × 5 pages) even though we have 500+ jobs. The filter uses checkboxes but only allows a single selection (radio-button behavior).

**Projects**: Similar display and filtering behavior as above.

In our older Studio domain, these views show all items correctly, so I suspect either a configuration difference or a limitation in the newer domain that I’m not aware of.

I’ve already opened a case with AWS Support but haven’t found a resolution yet.
Could you please advise whether this is:

- expected behavior/limitation in the newer domain,
- a known issue, or
- a configuration/permission setting we should adjust?

I’m happy to share domain IDs, region, screenshots, and logs if helpful. Any guidance would be greatly appreciated.

Thank you!

### Other Details

_No response_

Start by comparing the newer and older SageMaker Studio domain behavior for Pipelines, training jobs, and Projects, focusing on pagination, sorting, and checkbox filters. Review the domain IDs, region, screenshots, logs, and AWS Support case when available; done means identifying whether the behavior is expected, a known issue, or a configuration or permission problem.

Written by the indexing model from the issue text.