In such a case i deselect a small vertice of the mesh to be extracted , somewhere where you cant see it, then extract the 99,999 percent mesh.
You may use weld vertices or manually disguise the little gap afterwards if its visible.

Hi everyone, I have an issue with a non native character. It seems like only less than 100% of the mesh can be extracted, if I have the entire mesh selected which is separate from the body, I can't extract the mesh. In this case the mesh to be extracted is a cloak. I'm aiming to have it separated for various reasons (intact) but mesh extraction option becomes unavailable using face mode when max is selected or via element mode.. vertex selection allows nothing to be selected.

Here is a tutorial showing mesh whole extraction via element (whole piece is automatically selected and the extract button is visible)  https://youtu.be/iuKaploaMPE?t=2459

Is there a work around for this? thanks.

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