Looks like it is on it’s own Sync chain to me. You should probably remove (or leave) that sync chain and follow the instructions (first link below) for setting up Sync to add you iPad to your other sync chain. As I said, I don’t use Sync on multiple devices so just basing this off other topics having sync issues. I could be wrong (probably lol). I posted releated topics below in case they can help you troubleshoot.
Help Center article:
Other related topics:
From one of the links above, this is a topic where Mattches (community support) helped troubleshoot.
Can’t establish sync on new profile