Description of problem: Starting the node maintenance produces an error in browser console: backend.js:1 Warning: React does not recognize the `isExpanded` prop on a DOM element. If you intentionally want it to appear in the DOM as a custom attribute, spell it as lowercase `isexpanded` instead. If you accidentally passed it from a parent component, remove it from the DOM element. in div (created by Expandable) in Expandable (created by StartingMaintenancePopoverContent) in StartingMaintenancePopoverContent (created by MaintenancePopover) Apparently the @patternfly/react-core version used in console does not us isExpanded prop for controlling the state of the Expandable component.
Update: Checking the Expandable component source at [1] shows, that isExpanded prop is incorrectly passed to the div element with remaining props [1] https://github.com/patternfly/patternfly-react/blob/master/packages/patternfly-4/react-core/src/components/Expandable/Expandable.tsx
VERIFIED OpenShift version 4.2.0-0.nightly-2019-09-13-040309
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHBA-2019:2922