title: Android signed app crashing. Worked before sign
body: <p>as the title says i've recently signed my app but found once i signed my app that it then became unusable. Worked perfectly fine up until i signed it, never had a single issue like this. Then it started killing itself as soon as the unity splashscreen finished displaying(possibly during it i'm not too sure).
  Even if i make a debug signed version it does the same thing...killing itself during the Unity splashscreen.
  I'm very in-experienced with logcat but these were the only errors to be found within the log in reference/around launching my app.</p>
  
  <p>Note: Using Unity Android.</p>
  
  <p>Any help would be appreciated as it's been two days of bashing my head against a desk.
  Thanks in advance.</p>
  
  <pre><code>11-06 00:57:52.585 E/Unity   (31921): Error joining threads: 3
  11-06 00:57:52.585 E/Unity   (31921):  
  11-06 00:57:52.585 E/Unity   (31921): (Filename: /Applications/buildAgent/work/842f9557127e852/Runtime/Threads/Thread.cpp Line: 367)
  11-06 00:57:52.585 E/Unity   (31921): 
  11-06 00:57:52.815 I/DEBUG   (30096): *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
  11-06 00:57:52.815 I/DEBUG   (30096): Build fingerprint: 'samsung/GT-I9100/GT-I9100:2.3.3/GINGERBREAD/XWKG1:user/release-keys'
  
  
  
  
  11-06 00:57:59.130 E/lights  ( 2698): write_int: path /sys/class/backlight/pwm-backlight/brightness, value 57
  11-06 00:57:59.150 E/lights  ( 2698): write_int: path /sys/class/backlight/pwm-backlight/brightness, value 54
  11-06 00:57:59.150 E/InputDispatcher( 2698): channel '4083e180 com.BraydenWale.NoFlyZone/com.unity3d.player.UnityPlayerActivity (server)' ~ Consumer closed input channel or an error occurred.  events=0x8
  11-06 00:57:59.150 E/InputDispatcher( 2698): channel '4083e180 com.BraydenWale.NoFlyZone/com.unity3d.player.UnityPlayerActivity (server)' ~ Channel is unrecoverably broken and will be disposed!
  11-06 00:57:59.150 I/ActivityManager( 2698): Process com.BraydenWale.NoFlyZone (pid 31921) has died.
  11-06 00:57:59.150 I/WindowManager( 2698): WIN DEATH: Window{40854bf0 SurfaceView paused=false}
  11-06 00:57:59.155 D/Zygote  ( 2587): Process 31921 terminated by signal (11)
  </code></pre>