I've found an issue with the Webex app for version 44.9.0.30650
When scheduling a meeting you can add 1 unverified email, but when trying to add a second unverified email it doesn't actually add the email to the invitees. I've tested this on version 44.7.0.30285, and it worked just fine, and I was able to add multiple unverified invitees to the current version on meetings that are already started, this only happens when trying to schedule a meeting for the future.
Any ideas on how to fix this or if this is something that we just need to wait for Cisco to look into?