Buttons Stopped Receiving clicks

[artician]

Hello,

I've been working on a project for some time and using NGUI successfully.  Today I added some options to one of my GUIs, and all buttons in that GUI stopped receiving Click or Touch commands.  I checked depth of colliders, as well as events being sent, and also reverted the changes I made today before the problem began, but they just don't receive anything now!

Are there any common troubleshooting steps you can recommend for me?  I am pulling my hair out here.  One of those "it worked fine a minute ago..." scenarios. 

Thanks in advance for any suggestions.

[ArenMook]

Have you checked your UICamera? That script is what sends out the events. Make sure its event receiver mask is correct.

[artician]

That was it!  Why did that change on it's own?  Either way, it changed on it's own somehow, but it was an easy fix.  Thank you! That was killing me.