422 Error when trying to Follow/Start build project

I logged in using my Github account and whenever I want to “Follow” a project or start a new project I get 422 error. I don’t get any error message on UI but when I inspect API request the response is:

"{"message":"{\"message\":\"Validation Failed\",\"errors\":[{\"resource\":\"Hook\",\"code\":\"custom\",\"message\":\"download, fork_apply, follow, and gist are not valid event names\"}],\"documentation_url\":\"https://developer.github.com/v3/repos/hooks/#create-a-hook\"}"}"

Can you help me figure out what is going on?

I’m also getting this same error message.

Same error here. 422 when trying to add project. Tried v2 and v1.

We are investigating this actively. Thanks.

A fix has been rolled out. Thanks for reporting!

Thanks. Tested and works again!

Thank you!