No TestFlight invite email gets sent for internal users

Question

I set up my application for TestFlight. For external users it is waiting for review. But if I want to invite internal users, I select them and press invite. iTunes Connects says

Answer 1

Please do not check/uncheck the Internal Tester status - sending another invite to these guys is a PAIN!

I simply incremented my build from 1.0 to 1.0.1 and submitted the app. The key is - to see if the APP is available right away as 'Active', then great! Else, if its sitting in the 'Processing' section of iTunes Connect (like a Fumb Duck), no use trying to revive that.

So, as soon as you find your app in the Processing Section - wait for about an hour, watch another episode of House of Cards 2.0 (3.0 is boring).. then..

1. Increment Build - add an 0.1 to the current one
2. Validate - dont forget to validate (I validated 3 times, just to be ultra sure)
3. Submit
4. Add Beta Information and Ta Da!

Cheers!