Not without details on the toolbox and the tools. Did it every work? Do they work on another computer? Is it a convention toolbox (*.tbx) or a python toolbox (*.pty) anything you think might help
It used to work. Just regular toolbox. The tools actually execute mostly, however sometimes an input field won't show, or table fields aren't selectable. It does not matter the tool either, could be 'append' or 'xy to line'. I only have 10.2.2 installed on this machine and switching "users" does not change the result.