Person who added their own server log wasn't having the same error as me.
Here's mine:
[17:15:40] [Client thread/INFO]: Setting user: Bioniclegenius
[17:15:40] [Client thread/INFO]: (Session ID is token:018dc96678f74caf87504684202f4ee4:53656a20d7cb46288e7f693c07a8fe70)
[17:15:42] [Client thread/INFO]: LWJGL Version: 2.9.4
[17:15:42] [Client thread/INFO]: Reloading ResourceManager: Default, Better Glass.zip
[17:15:43] [Sound Library Loader/INFO]: Starting up SoundSystem...
[17:15:43] [Thread-6/INFO]: Initializing LWJGL OpenAL
[17:15:43] [Thread-6/INFO]: (The LWJGL binding of OpenAL. For more information, see http://www.lwjgl.org)
[17:15:43] [Thread-6/INFO]: OpenAL initialized.
[17:15:44] [Sound Library Loader/INFO]: Sound engine started
[17:15:44] [Twitch authenticator/ERROR]: Given twitch access token is invalid
[17:15:44] [Client thread/INFO]: Created: 512x512 textures-atlas
[17:16:16] [Client thread/INFO]: Connecting to 127.0.0.1, 25565
[17:16:19] [Client thread/INFO]: Reloading ResourceManager: Default, Better Glass.zip
[17:16:19] [Client thread/INFO]: SoundSystem shutting down...
[17:16:20] [Client thread/WARN]: Author: Paul Lamb, www.paulscode.com
[17:16:20] [Sound Library Loader/INFO]: Starting up SoundSystem...
[17:16:20] [Thread-10/INFO]: Initializing LWJGL OpenAL
[17:16:20] [Thread-10/INFO]: (The LWJGL binding of OpenAL. For more information, see http://www.lwjgl.org)
[17:16:20] [Thread-10/INFO]: OpenAL initialized.
[17:16:20] [Sound Library Loader/INFO]: Sound engine started
[17:16:21] [Client thread/INFO]: Created: 512x512 textures-atlas
[17:16:21] [Client thread/INFO]: Reloading ResourceManager: Default, Better Glass.zip
[17:16:21] [Client thread/INFO]: SoundSystem shutting down...
[17:16:21] [Client thread/WARN]: Author: Paul Lamb, www.paulscode.com
[17:16:21] [Sound Library Loader/INFO]: Starting up SoundSystem...
[17:16:21] [Thread-12/INFO]: Initializing LWJGL OpenAL
[17:16:21] [Thread-12/INFO]: (The LWJGL binding of OpenAL. For more information, see http://www.lwjgl.org)
[17:16:21] [Thread-12/INFO]: OpenAL initialized.
[17:16:22] [Sound Library Loader/INFO]: Sound engine started
[17:16:23] [Client thread/INFO]: Created: 512x512 textures-atlas
This bug... isn't resolved. Why did you mark it as such? Absolutely nothing has changed so far.
Bit more info: The client is 1.8.7, and has the bug upon joining either a 1.8.6 or 1.8.7 server. Happens every time I join. Server has been rebooted multiple times, client has been rebooted multiple times.