Hi @Mac-Rae.
Thanks for the welcome.
As admin I ran Quick Repair and Rebuild : no errors.
DevTools Console & Empty Cache and Hard Reload : Many “Found ? elements with non-unique id” warnings
So maybe it’s a Chrome issue? However in FireFox 68 I get similar rendering but no warnings
So it must be related to my webapp instance and not the browser? Can I simply redeploy some PHP files?
Back in Chrome I get the following warnings, each of which relates to the jumbled controls in the Add Constraint panel.