Why did the dynamic QR code I created disappear?

Why did the dynamic QR code I created disappear? I can’t view it from my backend anymore.
However, it seems that scanning the previously created QR code still works.

How long can this kind of QR code remain usable?
Why can’t I find the QR code I created in my backend? This makes me feel very insecure.
I remember I created the QR code sometime between 2021 and 2023.

Hey @user20, Thanks for reaching out to us! We’ve had some data migration before, which caused a temporary bug in showing the QR codes in the dashboard. If you could please send the QR code image to our Support Email (support@the-qrcode-generator.com), we can migrate it to our dashboard.