If you have your window open with all your tabs call it "Window A" then you open a new window and have a few tabs in it call this Window B.
If you then move a tab from Window B to Window A it will add that tab to the first Tab Group and not the current one.
If you have your window open with all your tabs call it "Window A" then you open a new window and have a few tabs in it call this Window B.
If you then move a tab from Window B to Window A it will add that tab to the first Tab Group and not the current one.