Launch sagemaker studio often the sidebar doesn't fully populate

### Product Version

- [ ] Amazon SageMaker Studio Classic
- [x] Amazon SageMaker Studio
- [ ] Issue is not related to SageMaker Studio

### Issue Description

Quite often when I launch sagemaker stuidio, I end up on a landing page that only contains the "Applications", "Partner Apps" adn "Compute" sections in the left sidebar. None of the usual options are available such as "Pipelines" etc.

### Expected Behavior

All the options should be presented every time I load in to sagemaker studio

### Observed Behavior

Randomly not all options are presented

### Product Category

_No response_

### Feedback Category

User Interface

### Other Details

This is all that's appearing at the moment - none of the usual options such as starting a pipeline have been presented

The report provides no repository files, tests, or entry points to inspect. Start by reproducing the SageMaker Studio launch flow and compare the sidebar when all options are present with the incomplete state; done means determining the cause and ensuring options such as Pipelines consistently appear.

Written by the indexing model from the issue text.