On August 28, 2019 at 10:01 a.m. PDT a change was released which unexpectedly prevented some customers from being able to create channels. Specifically, if the channel name included a hyphen or underscore.
An update was made to ensure channel names with such characters were validated correctly, and by August 29 at 12:33 p.m. PDT channel creation was functioning as expected once again.
10:06 PM PST
We’re happy to report that you should now be able to create channels that contain a hyphen or underscore in the name without any trouble! We apologize for the disruption.
4:01 PM PST
We are still looking into channel name issues with channel creation but we hope we are nearing a fix. Thanks for your patience!
12:21 PM PST
We're seeing report of users having intermittent trouble with creating channel names. We're investigating and will follow up when we know more.
11:46 AM PST