Oh I see, at first glance it looked like a screenshot from 2018.0. We actually have the same issue and I figured out how to solve it. Xtraction uses the Url Id attribute in CMDB\Configuration Items\CONIFGURATION_ITEM to assemble the visualizer URL. The problem is the expression that is being used is returning a lowercase UUID while visualizer is expecting uppercase..
To solve this I replaced the expression that is used on the URL_ID attribute. Before updating the data model backup datamodel.dat file.
New Expression:
CONVERT(varchar(max),CONFIGURATION_ITEM.OWN_RESOURCE_UUID,2)
Results in: https://visualizer_url/CMDBVisualizer/externallaunch.do?uuid=84140D575245A441A7884D4544A6BFDE
Original Expression:
SUBSTRING(master.dbo.fn_varbintohexstr(CONFIGURATION_ITEM.OWN_RESOURCE_UUID), 3, LEN(master.dbo.fn_varbintohexstr(CONFIGURATION_ITEM.OWN_RESOURCE_UUID)) - 2)
Results in: https://visualizer_url/CMDBVisualizer/externallaunch.do?uuid=e62e24ebf6dcb44ca8319bfd9c31df53
Don't forget to save the data model and then reload the data model in the UI.
Let me know if this works for you!