The Team Coding buttons in the editor do not update correctly when you follow the steps below:
1. Open Toad and from the Editor window, check-out an object.
2. In the same instance of Toad open another connection as a different user.
3. Go back to the first session and check-in the object. The check-in/check-out/undo button do not display correctly and are greyed out.
If you close the second connection the buttons do come back correctly (the undo check-out button is now greyed out and the check-out button displays again).