VoiceClient.play() doesnt work after a restart without disconnecting

[thesn10]

Summary

play() doesnt work after a restart without disconnecting and throws no exception. The bot is silent in the voice channel

Reproduction Steps

1. connect to a voice channel
2. terminate the bot without disconnecting from the voice channel
3. the bot will stay inactive in the voice channel
4. start the bot again
5. connect to the same voice channel (this step must happen before discord kicks the bot out of the channel)
6. the bot is unable to play() until a disconnect and reconnect

Expected Results

play() should work

Actual Results

play() doesnt work and throws no exception. The bot is silent in the voice channel

Checklist

• [x] I have searched the open issues for duplicates.
• [x] I have shown the entire traceback, if possible.
• [x] I have removed my token from display, if visible.

System Information

• Python v3.7.0-final
• discord.py v1.2.3-final
• aiohttp v3.5.4
• websockets v6.0
• system info: Windows 10 10.0.18362

[gregistech]

Can confirm this, a little annoying

[hammy275]

Can also confirm this issue. The bot doesn't know it's in a voice channel after the restart. Trying to disconnect through ctx.voice (ctx.voice_client.disconnect()) throws an error stating that it isn't connected to a voice channel. Maybe when writing a bot, it could search the voice channels of all the guilds it's in (could take a while depending on the popularity of your bot), and if it finds its own ID, to join and leave that voice channel to get it in a better state.

[Steffo99]

Can confirm this too, I spent 2 days debugging when I found out that stopping the bot, waiting for it to disconnect, restarting and reconnecting it to voice fixed the issue.

[Steffo99]

I wasn't using cogs, I was using channel.connect() created from a discord.Client.

Might also be related to a bug where Right click > Disconnect on a bot causes some weird behavior when it reconnects to voice.

[xcrafter40]

If you have a file handle that you are playing audio from, make sure you seek the handle back to the beginning or it will not play anything.

[Ruuttu]

Was there a "good" workaround for this? The only thing I can get to work is to connect to a different voice channel, then back to the one I actually want to play at.

[HarryIsABozo]

Was there a "good" workaround for this?

@Ruuttu Yep, manually disconnect the bot from voice (Right Click > Disconnect) then restart the bot and reconnect to voice. Not very good but it's the main workaround. There are, of course, hacky ways to entirely eliminate the issue but I wouldn't recommend most.