This image describes all possible states:
Check the file names. They explain their own condition.

Mostly ethereal (*) refers to phased . The resource has changes that are added to the index. Not that adding to the index is currently possible only in the commit dialog in the resource context menu.
Decision:
Since this obj folder was previously tracked , therefore, despite removing git from tracking, it is deleted from your local repo not from the remote repository. Thus, you can simply clear the cache using the following command and reloading your project.
git rm --cached
Please backup your project securely.
Details: check out the doc .
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