Same here and this is day 5 of this. This is an app with earlier versions I've had submitted for external testing with no issues.

I've been trying to submit a build for external TestFlight testing for the past 2 days and still getting "Some of the information required to submit your build for external testing is missing.". This is an app with earlier versions I've had submitted for external testing with no issues. Has anyone found a resolution for this?

Same here

@RicP Did you find a solution for this? we are having the same issue.