Here is my corouytine and the traceback on it to verify my issue too:

Task exception was never retrieved
future: <Task finished coro=<VoiceBotCommands.__load() done, defined at E:\Users\Elsword\Desktop\DecoraterBot\Async\resources\Dependencies\DecoraterBotCore\commands\botvoicecommands.py:242> exception=TimeoutError()>
Traceback (most recent call last):
  File "asyncio\tasks.py", line 239, in _step
  File "E:\Users\Elsword\Desktop\DecoraterBot\Async\resources\Dependencies\DecoraterBotCore\commands\botvoicecommands.py", line 257, in __load
    self.voice = yield from self.bot.join_voice_channel(self.vchannel)
  File "discord\client.py", line 3166, in join_voice_channel
  File "asyncio\tasks.py", line 396, in wait_for
concurrent.futures._base.TimeoutError

    @async
    def __load(self):
        """
        Makes bot able to join a voice channel when the commands are loaded.
        """
        try:
            vchannel_2 = str(self.botvoicechannel['Bot_Current_Voice_Channel'][0])
            vmserver = str(self.botvoicechannel['Bot_Current_Voice_Channel'][1])
            vmchannel = str(self.botvoicechannel['Bot_Current_Voice_Channel'][2])
            self.voice_message_server_name = str(self.botvoicechannel['Bot_Current_Voice_Channel'][3])
            self.vchannel_name = str(self.botvoicechannel['Bot_Current_Voice_Channel'][4])
            self.vchannel = discord.Object(id=vchannel_2)
            self.voice_message_server = discord.Object(id=vmserver)
            self.voice_message_channel = discord.Object(id=vmchannel)
            try:
                self.voice = yield from self.bot.join_voice_channel(self.vchannel)
                self.verror = False
            except discord.errors.ConnectionClosed:
                pass
            except discord.errors.InvalidArgument:
                self.voice_message_server_name = None
                self.vchannel_name = None
                self.vchannel = None
                self.voice_message_server = None
                self.voice_message_channel = None
                self.voice = None
                self.verror = True
            except BotErrors.CommandTimeoutError:
                yield from self.bot.send_message(self.voice_message_channel,
                                                 content=str(
                                                     self.bot.botmessages['reload_commands_voice_channels_bypass2'][0]))
                self.voice_message_server_name = None
                self.vchannel_name = None
                self.vchannel = None
                self.voice_message_server = None
                self.voice_message_channel = None
                self.voice = None
                self.verror = True
            except RuntimeError:
                self.voice_message_server_name = None
                self.vchannel_name = None
                self.vchannel = None
                self.voice_message_server = None
                self.voice = None
                self.verror = True
                msgdata = str(self.bot.botmessages['reload_commands_voice_channels_bypass2'][1])
                yield from self.bot.send_message(self.voice_message_channel, content=msgdata)
                self.voice_message_channel = None
            if self.verror is not True:
                message_data = str(self.bot.botmessages['reload_commands_voice_channels_bypass2'][2]).format(
                    self.vchannel_name)
                yield from self.bot.send_message(self.voice_message_channel, content=message_data)
        except IndexError:
            self.voice_message_server_name = None
            self.vchannel_name = None
            self.vchannel = None
            self.voice_message_server = None
            self.voice_message_channel = None
            self.voice = None
        except discord.errors.ClientException:
            pass  # already in a voice channel so lots not set those values to None.