Twitch Plays Pokemon is too popular for its own good – it’s starting to break parts of the video game streaming platform.

The stream, in which thousands of people are trying to play Pokémon Red at once, had over 100k peak concurrent viewers, but as a result it’s put “enormous (and unforeseen) stress on Twitch’s chat system”, the company said last night.

“We’re always working on improving the QoS of our chat system, and this has been a wonderful learning experience for us.”

To combat this Twitch moved the channel off of its general chat servers and onto its own dedicated event chat server, the kind reserved for large eSports events such as the Dota 2 International. This helped, but it didn’t fix the problem.