gui disappear

[pcutile]

After unity editor restart,many times my gui disappear, sometimes disappear only the buttons sometimes all my interface.
often i discover that uiroot is disabled (but not disabled by me) sometimes find uicamera and depth totaly different form when was created.
Please explain if there is something that i don't understood.

[ArenMook]

NGUI doesn't change depths of cameras, and the only place where UIRoot can get disabled is in its Start() function -- if you're also using a UIOrthoCamera component. When that happens, a warning is printed. You can always try adding a Debug.Log to the UIRoot's OnDisable function to see where it's getting called form.

[pcutile]

simply i have not start funcition in any of my class that disable uiroot.
i not sure 100% it's clear because you say right if it is your case. thanks for help.