What is this bone icon in the content browser?

Recently re-imported a skeletal mesh. I noticed some new options to choose geometry or skin weights. I had never noticed that before (maybe it’s new) so i just chose both. Now my skeletal mesh has a bone icon in the bottom right of the content browser icon. Never seen this before! What is it? Should I worry?

From what I gather that happens when you reimport the geometry without reimporting the skinning weights, and is fixed by selecting Geometry and Skinning Weights upon reimport. The locations of the files that are being imported are written on the left side under File Path under Asset Details.

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