Delete Assets?

Hi All,

New to Comfy, been doing image gen a while though. How do I remove assets properly in Comfy? I have a few images that were deleted directly from the output folder that still appear in the asset list, minus the thumbnail. I can't seem to remove them.

Is there an asset manager that the community recommends? I must be missing something on this, this is basic functionality stuff.

Any help is greatly appreciated!