Students Creating Accounts with School Email/Continually logged off and asked to log in

Problem description:
When students create accounts with their school email (for the first time), proceeds to log them out and then ask them to log in again. They never get a full, consistent load to stay on an HTML, CSS, JS template

Expected behavior:
Students create a account and then can create an HTML, CSS + JS script and begin coding

Actual behavior:
Students are bumped off of and then asked to login again (this cycle repeats continually).

Steps to reproduce:
Out of a class of 17 issue turned up with about 4-5 students using email addresses with the suffix.

Bug appears at this link:
Will appear on new user signup and continues after students have verified email.

Device (Android, iOS, NA leave blank):
Desktop app version (Avatar menu->“Version”) or NA:
Plan (Free, Hacker, Pro Plan):
Free- but all students had a prompt to try out the free Pro Plan.

We have updated our authentication system, this should be resolved. Please let us know if this is still occurring.