1. Post a message consisting only of whitespace inside of the message field. This can be accomplished by just pressing the spacebar, pasting several em spaces, etc.
2. Press Enter to submit the message.

Expected Behavior

In the original Discord client, the message will not be sent and the message field won't be cleared. Haven't tested how Slack responds to this behavior.

Actual Behavior

A blank message pops up and stays stuck to the bottom of the channel as highlighted in this linked image. Note that this doesn't actually send a message as this blank message doesn't appear in Discord's original client.

The phantom message does not go away after closing and re-opening the tab for the channel you produced this bug in. The only way I've found to get rid of the phantom message is by restarting Ripcord entirely.

Additional Notes

I found this behavior using the Discord functionality of Ripcord on Windows 10. As a result, I'm not sure if this is a Windows specific bug or not, nor if it's specific to Discord or not as I haven't been able to test this behavior on the Slack side of things.

Ah, yeah. I should probably add something to handle that.