This happens because the code version of the mockup generator is lower than that of other pages.
As a result, multiple logins occur when designing products (click Design). However, this issue only arises when designing for the first time after a new version update.
Here’s how to solve this problem:
1. Log in to your account under the new version
You need to log in to your account using the latest version domain name.
Latest version domain names:
2. Click "Design"
When you select a product and click Design, you will be redirected to an older version of the login page, prompting you to log in again. The domain name will be c.jetprintapp.com. You need to log in again to retain your login information.
3. Re-click "Design" in the new version
Close the domain URL c.jetprintapp.com，return to the original product page and click Design. You will not need to log in again.
4. Allow pop-ups and close the URL
When you log in to your account, Google may prompt you to block pop-up requests. You need to allow pop-ups from this page.
⚠️Note
If you are not logged into the new version, you may be prompted to log in three times.
We apologize for the inconvenience; our technicians are currently updating the mockup generator.