Ios crash when use multiple umg widget

My project have 2 umg widget 1st is a main menu and 2nd is gallery like menu my problem is when i use only one can run in my ipad without problem but when i use all of 2 umg (link by button and remove all wideget and create new one) it ll suddenly crash in start app. On my pc work fine without problem. Any suggestion ? Thank you very much.