Could this Freeze be related to NGUI?

[Yuemari]

Hi there,

I am developing a iOS endless runner, using some Custom shaders for in-game effects and NGUI, about 10 or more minutes after starting to play the game freezes about 3-5 seconds and then unfreeze with a low framerate that slowly goes up again, I used Unity profiler on iOS and this are the images, if we are doing something that isnt good for NGUI and that shows up on the image or anything your experience could tell me would be great to know.

Here are some images before, during and after the freeze.

Thanks in advance!

[ArenMook]

Nice spike. I doubt this has anything to do with NGUI though. I don't see anything in there related to it, just some terrain spawner of yours.