Hi, @martin33ULS.
Thanks for bringing this to my attention and for sharing the steps you've done. I'm here to help fix the issue you get in the Customer Account Management Portal (CAMPs).
We haven't received any reported cases similar to what you're having. Since the issue persists after trying different computers and browsers, I highly suggest contacting our Support team. They have tools such as screen-sharing (remote access) that can pull up your account in a secure environment and check the cause of this odd behavior. They can also perform other troubleshooting steps if necessary.
The steps to reach them may differ depending on the QuickBooks version you're using. Please refer to this article for further guidance: Contact QuickBooks products and services Support.
To learn more about managing your account in CAMPs, you can check out this article: Change, manage or update your Intuit account with CAMPs.
I also recommend visiting our website for more tips and other resources you can use in the future: Self-help articles.
Let me know if you have follow-up questions about CAMPs or anything else QuickBooks. I'll be right here ready to help. Take care always.