Couldn't delete Endpoint

### Product Version

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

### Issue Description

I wanna delete endpoint, but It cannot be deleted and show below message.
```
There are some underlying Models that are part of this endpoint.
Please delete the resources under Model tabs.
Once all Models are deleted, you can delete this endpoint.
```

But I already deleted all of models in the endpoint as shown in below image.


### Expected Behavior

Endpoint will be deleted

### Observed Behavior

Cannot delete endpoint

### Product Category

Inference and Endpoints

### Feedback Category

Error Handling and Debugging

### Other Details

_No response_

This report concerns deleting an endpoint in Amazon SageMaker Studio and names no repository files, tests, or code entry points. Start by reviewing the reported endpoint and model state in SageMaker Studio, then determine why deletion remains blocked after the models were removed. Done means the endpoint can be deleted or the underlying resource causing the block is identified.

Written by the indexing model from the issue text.