If the Textile Designer Export tab isn't allowing a tile export of a repeat to happen, you may receive the error message, "The Move function is unavailable." Following the error message, please follow these steps:
Close Photoshop Open Creative Cloud and in the list of Installed Apps will be Photoshop with an, "..." next to it. Click on the icon and choose "Other Versions" in the list Scroll down to 23.3.2 or older versions and install. Once this version is installed, please try to open and Export again. This will fix the issue.