Jenkins isn't showing the Full UI in "Manage Jenkins" -> "Configure System"

[pcarney8]

Something is malformed in the UI, so it prevents the top half and bottom half from rendering. Including having no "save" button in the UI.

The config.xml is complete and well-formed in the container though.

Uncaught TypeError: Cannot read property 'firstChild' of undefined
    at registerValidator (hudson-behavior.js:424)
    at Array.forEach (<anonymous>)
    at behavior.js:111
    at Array.forEach (<anonymous>)
    at behavior.js:107
    at Array.forEach (<anonymous>)
    at Object.applySubtree (behavior.js:93)
    at select.js:269

and a warning for:

configure:1 [DOM] Found 2 elements with non-unique id #svn.remote.loc: (More info: https://goo.gl/9p2vKq) <input checkdependson=​"remote" onchange=​"{ /​* workaround for JENKINS-19124 */​             var self=this.targetElement ? this.targetElement :​ this;​             var r=findNextFormItem(self,'credentialsId')​;​             r.onchange(r)​;​             if (self===document.getElementById('svn.remote.loc')​)​{                 r=findNextFormItem(self,'excludedRevprop')​;​                 r.onchange(r)​;​             }​             self=null;​             r=null;​     }​" id=​"svn.remote.loc" checkurl=​"/​descriptorByName/​hudson.scm.SubversionSCM$ModuleLocation/​checkRemote" name=​"_.remote" type=​"text" class=​"setting-input validated  " value>​ <input checkdependson=​"remote" onchange=​"{ /​* workaround for JENKINS-19124 */​             var self=this.targetElement ? this.targetElement :​ this;​             var r=findNextFormItem(self,'credentialsId')​;​             r.onchange(r)​;​             if (self===document.getElementById('svn.remote.loc')​)​{                 r=findNextFormItem(self,'excludedRevprop')​;​                 r.onchange(r)​;​             }​             self=null;​             r=null;​     }​" id=​"svn.remote.loc" checkurl=​"/​descriptorByName/​hudson.scm.SubversionSCM$ModuleLocation/​checkRemote" name=​"_.remote" type=​"text" class=​"setting-input validated  " value>​

[mcanoy]

i see this when using the master branch after upgraded from tag v1.3. When I disable the plugin nexus-jenkins-plugin:3.7.20190823-091836.9f85050 the save button returns. Still lots of errors in the logs

WARNING: Caught exception evaluating: h.filterDescriptors(it,attrs.descriptors) in /configure. Reason: java.lang.NullPointerException: Descriptor list is null for context 'class hudson.model.Hudson' in thread 'Handling GET /configure from 10.9.55.81 : qtp5883478-15 Jenkins/configure.jelly GlobalLibraries/config.jelly LibraryConfiguration/config.jelly SCMRetriever/DescriptorImpl/config.jelly MultiSCM/DescriptorImpl/config.jelly'
java.lang.NullPointerException: Descriptor list is null for context 'class hudson.model.Hudson' in thread 'Handling GET /configure from 10.9.55.81 : qtp5883478-15 Jenkins/configure.jelly GlobalLibraries/config.jelly LibraryConfiguration/config.jelly SCMRetriever/DescriptorImpl/config.jelly MultiSCM/DescriptorImpl/config.jelly'
	at hudson.model.DescriptorVisibilityFilter.apply(DescriptorVisibilityFilter.java:73)
	at hudson.Functions.filterDescriptors(Functions.java:1876)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)

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