Hello
We have a customer who has been able to log into our customer portal for many years with no issue. Then in the last 2 weeks this user is no longer able to access and initially got this message

Our team checked her user name and she still had access to the organization. She had noted that she also uses the same email address for her own company Jira access and has no problems accessing their site using her company's url.
We have done the following steps in order to try to access
User has cleared her cache
User has gone in as incognito mode
We also set up user with using another email address and no issues logging in with that address but this had to be removed due to compliance reasons
User reached out to her on IT department and the confirmed every thing was correct on their side and repointed user back to us
We tried remove her email address from the organization and then readding her back but she never received the link and we also observed we no longer see her email at all under customers as we were expecting to see her email with the message Resend invite.
We suspect there's conflict using her email address since it's also being used for her Jira organization. What are the appropriate steps to remedy this.
Any guidance would be much appreciated.
Thank you!
Regards,
Michelle