Crash when disconnecting from Realms

Minecraft crashes everytime I disconnect from my Minecraft Realms Server.

Taken direct from Minecraft Launcher's Launcher Log with the 'downloading' parts deleted due to character limit:

[15:34:37 INFO]: Minecraft Launcher 1.6.11 (through bootstrap 100) started on windows...
[15:34:37 INFO]: Current time is Jun 7, 2015 3:34:37 PM
[15:34:37 INFO]: System.getProperty('os.name') == 'Windows 8.1'
[15:34:37 INFO]: System.getProperty('os.version') == '6.3'
[15:34:37 INFO]: System.getProperty('os.arch') == 'amd64'
[15:34:37 INFO]: System.getProperty('java.version') == '1.8.0_25'
[15:34:37 INFO]: System.getProperty('java.vendor') == 'Oracle Corporation'
[15:34:37 INFO]: System.getProperty('sun.arch.data.model') == '64'
[15:34:37 INFO]: proxy == DIRECT
[15:34:38 INFO]: JFX is already initialized
[15:34:40 INFO]: Refreshing local version list...
[15:34:41 INFO]: Refreshing remote version list...
[15:34:52 INFO]: Refresh complete.
[15:34:53 INFO]: Loaded 3 profile(s); selected 'Latest Vanilla Minecraft'
[15:34:53 INFO]: Refreshing auth...
[15:34:53 INFO]: Logging in with access token
[15:37:31 INFO]: Getting syncinfo for selected version
[15:37:31 INFO]: Queueing library & version downloads
[15:37:32 INFO]: Download job 'Version & Libraries' started (16 threads, 34 files)
Downloaded parts removed - Crash information below
[15:37:40 INFO]: Looking for orphaned versions to clean up...
[15:37:43 INFO]: Looking for old natives & assets to clean up...
[15:47:04 ERROR]: Game ended with bad state (exit code -805306369)
[15:47:04 INFO]: Ignoring visibility rule and showing launcher due to a game crash
[15:47:04 INFO]: Deleting C:\Users\Jamie\AppData\Roaming\.minecraft\versions\1.8.7\1.8.7-natives-597806081440855
[15:47:04 WARN]: Couldn't delete C:\Users\Jamie\AppData\Roaming\.minecraft\versions\1.8.7\1.8.7-natives-597806081440855 - scheduling for deletion upon exit
Re-Loading game
[15:48:55 INFO]: Getting syncinfo for selected version
[15:48:55 INFO]: Queueing library & version downloads
[15:48:55 INFO]: Download job 'Version & Libraries' started (16 threads, 34 files)
[15:48:55 INFO]: Attempting to download
Downloaded parts removed - Crash information below
[16:02:30 INFO]: Looking for orphaned versions to clean up...
[16:02:34 INFO]: Looking for old natives & assets to clean up...
[18:11:59 ERROR]: Game ended with bad state (exit code -805306369)
[18:11:59 INFO]: Ignoring visibility rule and showing launcher due to a game crash
[18:11:59 INFO]: Deleting C:\Users\Jamie\AppData\Roaming\.minecraft\versions\1.8.7\1.8.7-natives-599296018133456
[18:11:59 WARN]: Couldn't delete C:\Users\Jamie\AppData\Roaming\.minecraft\versions\1.8.7\1.8.7-natives-599296018133456 - scheduling for deletion upon exit