,
It looks as though your device is running out of shared memory. I would suggest making sure that your project is optimized for mobile development. I’d also open up the log and type in ‘warning’ in the search bar and try to resolve those issues with your animation instance class, the widget and the other warnings/errors you may find. The warnings could be causing part of your memory failure on the device.
01-11 13:35:11.491 18433-18476/com.umi_game.tiankongzhimen W/Adreno-GSL: <sharedmem_gpumem_alloc_id:1489>: sharedmem_gpumem_alloc: mmap failed errno 12 Out of memory
01-11 13:35:11.491 18433-18476/com.umi_game.tiankongzhimen E/Adreno-GSL: <ioctl_kgsl_sharedmem_alloc:1590>: ioctl_kgsl_sharedmem_alloc: FATAL ERROR : (null)
01-11 13:35:11.691 18433-18476/com.umi_game.tiankongzhimen D/UE4: Ensure condition failed: Creations == Deletions [File:E:\Engine_Svn\4.14.0\Engine\Source\Runtime\Engine\Private\Slate\DebugCanvas.cpp] [Line: 19]
01-11 13:35:11.691 18433-18476/com.umi_game.tiankongzhimen D/UE4: FProxyCounter::~FProxyCounter has a mismatch. 925 creations != 924 deletions
01-11 13:35:11.691 18433-18476/com.umi_game.tiankongzhimen A/libc: Fatal signal 11 (SIGSEGV) at 0x0000000c (code=1), thread 18476 (main)