The problem is with Rich Text Fields in Popups in Edit mode by default.
<skuidpage unsavedchangeswarning="yes" personalizationmode="server" showsidebar="true" showheader="true"> <models> <model id="Account" limit="1" query="true" createrowifnonefound="false" datasource="salesforce" sobject="Account"> <fields> <field id="RecordTypeId"/> <field id="Account_Notes__c"/> </fields> <conditions/> <actions/> </model> </models> <components> <pagetitle model="Account" uniqueid="sk-qqE-514"> <maintitle> <template>{{Name}}</template> </maintitle> <subtitle> <template>{{Model.label}}</template> </subtitle> <actions> <action type="multi" label="Edit Mode" uniqueid="sk-qqE-520"> <actions> <action type="showPopup"> <popup title="New Popup" width="90%"> <components> <social model="Account" uniqueid="sk-qqP-610"/> <basicfieldeditor showheader="true" showsavecancel="true" showerrorsinline="true" model="Account" uniqueid="sk-qqL-597" mode="edit"> <columns> <column width="50%" uniqueid="sk-qqL-593"> <sections> <section title="Section A" uniqueid="sk-qqL-594" collapsible="no"> <fields> <field uniqueid="sk-qqQ-619" id="Account_Notes__c"/> </fields> </section> </sections> </column> <column width="50%" uniqueid="sk-qqL-595"> <sections> <section title="Section B" uniqueid="sk-qqL-596"> <fields/> </section> </sections> </column> </columns> </basicfieldeditor> </components> </popup> </action> </actions> </action> <action type="multi" label="Read Mode" uniqueid="sk-qqE-524"> <actions> <action type="showPopup"> <popup title="New Popup" width="90%"> <components> <social model="Account" uniqueid="sk-qqV-651"/> <basicfieldeditor showheader="true" showsavecancel="true" showerrorsinline="true" model="Account" uniqueid="sk-qqU-638" mode="read"> <columns> <column width="50%" uniqueid="sk-qqU-634"> <sections> <section title="Section A" uniqueid="sk-qqU-635" collapsible="no"> <fields> <field uniqueid="sk-qqW-660" id="Account_Notes__c"/> </fields> </section> </sections> </column> <column width="50%" uniqueid="sk-qqU-636"> <sections> <section title="Section B" uniqueid="sk-qqU-637"> <fields/> </section> </sections> </column> </columns> </basicfieldeditor> </components> </popup> </action> </actions> </action> </actions> </pagetitle> </components> <resources> <labels/> <javascript/> <css/> <actionsequences uniqueid="sk-qpO-327"/> </resources> <styles> <styleitem type="background" bgtype="none"/> </styles> </skuidpage>