This bug still occurs randomly. If you're trying to recreate it, open several tabs in one window then drag one out of the group. Maximize the newly created window and try to drag back the tab to the original group. It won't.
This bug still occurs randomly. If you're trying to recreate it, open several tabs in one window then drag one out of the group. Maximize the newly created window and try to drag back the tab to the original group. It won't.