After cloning or syncing a WordPress instance, a few URLs in the target instance still point to the source WordPress instance.
On the source WordPress instance, the plugin WPML (WordPress Multilingual Plugin) or XTemos is installed and configured.
#EXTWPTOOLK-2413 "Cloning now should properly process links generated by WPML plugin."
- WordPress Toolkit 5.7.2 12 October 2021
If update is not possible for some reason you may try the following
Currently, no workaround is available to automatically fix the unmodified URLs.
To fix incorrect URLs after cloning or synchronizing an instance, update them in target WordPress instance manually.