Publish waits infinitely

I am trying to get gutenberg working. Unfortunately.

WP version Version 4.9.8, PHP version 7.2.8

Posts -> Add New produces this in firefox console:

value prop in color objects passed by withColors HOC is deprecated and will be removed from Gutenberg in 3.9. Please use 'color' prop passed in the object instead. Note: This is a global warning, shown regardless of whether value prop is used. index.js:1:5643
Warning: Unsafe lifecycle methods were found within a strict-mode tree:
    in Unknown (created by r)
    in r (created by RemountOnPropChange(r))
    in RemountOnPropChange(r)
    in WithSelect(Component)

componentWillUpdate: Please update the following components to use componentDidUpdate instead: t

Learn more about this warning here:
https://fb.me/react-strict-mode-warnings

After setting a title and text trying to publish produces:

Warning: Unsafe lifecycle methods were found within a strict-mode tree:
    in Unknown (created by r)
    in r (created by RemountOnPropChange(r))
    in RemountOnPropChange(r)
    in WithSelect(Component)

componentWillReceiveProps: Please update the following components to use static getDerivedStateFromProps instead: t

Learn more about this warning here:
https://fb.me/react-strict-mode-warnings react-dom.24169eaf.js:526:7
Warning: React does not recognize the 'postType' prop on a DOM element. If you intentionally want it to appear in the DOM as a custom attribute, spell it as lowercase 'posttype' instead. If you accidentally passed it from a parent component, remove it from the DOM element.
    in div (created by t)
    in t (created by r)
    in r (created by RemountOnPropChange(r))
    in RemountOnPropChange(r)
    in WithSelect(t)
    in div
    in Unknown (created by r)
    in r (created by RemountOnPropChange(r))
    in RemountOnPropChange(r)
    in WithViewportMatch(Component) (created by NavigateRegions(WithViewportMatch(Component)))
    in div (created by NavigateRegions(WithViewportMatch(Component)))
    in NavigateRegions(WithViewportMatch(Component)) (created by e)
    in e (created by RemountOnPropChange(e))
    in RemountOnPropChange(e)
    in Unknown (created by WithDispatch(NavigateRegions(WithViewportMatch(Component))))
    in WithDispatch(NavigateRegions(WithViewportMatch(Component))) (created by r)
    in r (created by RemountOnPropChange(r))
    in RemountOnPropChange(r)
    in WithSelect(WithDispatch(NavigateRegions(WithViewportMatch(Component))))
    in t
    in t (created by t)
    in t (created by t)
    in t (created by t)
    in t (created by e)
    in e (created by RemountOnPropChange(e))
    in RemountOnPropChange(e)
    in Unknown (created by WithDispatch(t))
    in WithDispatch(t)
    in Unknown (created by r)
    in r (created by RemountOnPropChange(r))
    in RemountOnPropChange(r)
    in WithSelect(Component) react-dom.24169eaf.js:526:7
Warning: React does not recognize the 'hasPublishAction' prop on a DOM element. If you intentionally want it to appear in the DOM as a custom attribute, spell it as lowercase 'haspublishaction' instead. If you accidentally passed it from a parent component, remove it from the DOM element.
    in div (created by t)
    in t (created by r)
    in r (created by RemountOnPropChange(r))
    in RemountOnPropChange(r)
    in WithSelect(t)
    in div
    in Unknown (created by r)
    in r (created by RemountOnPropChange(r))
    in RemountOnPropChange(r)
    in WithViewportMatch(Component) (created by NavigateRegions(WithViewportMatch(Component)))
    in div (created by NavigateRegions(WithViewportMatch(Component)))
    in NavigateRegions(WithViewportMatch(Component)) (created by e)
    in e (created by RemountOnPropChange(e))
    in RemountOnPropChange(e)
    in Unknown (created by WithDispatch(NavigateRegions(WithViewportMatch(Component))))
    in WithDispatch(NavigateRegions(WithViewportMatch(Component))) (created by r)
    in r (created by RemountOnPropChange(r))
    in RemountOnPropChange(r)
    in WithSelect(WithDispatch(NavigateRegions(WithViewportMatch(Component))))
    in t
    in t (created by t)
    in t (created by t)
    in t (created by t)
    in t (created by e)
    in e (created by RemountOnPropChange(e))
    in RemountOnPropChange(e)
    in Unknown (created by WithDispatch(t))
    in WithDispatch(t)
    in Unknown (created by r)
    in r (created by RemountOnPropChange(r))
    in RemountOnPropChange(r)
    in WithSelect(Component) react-dom.24169eaf.js:526:7
Warning: React does not recognize the 'isPublished' prop on a DOM element. If you intentionally want it to appear in the DOM as a custom attribute, spell it as lowercase 'ispublished' instead. If you accidentally passed it from a parent component, remove it from the DOM element.
    in div (created by t)
    in t (created by r)
    in r (created by RemountOnPropChange(r))
    in RemountOnPropChange(r)
    in WithSelect(t)
    in div
    in Unknown (created by r)
    in r (created by RemountOnPropChange(r))
    in RemountOnPropChange(r)
    in WithViewportMatch(Component) (created by NavigateRegions(WithViewportMatch(Component)))
    in div (created by NavigateRegions(WithViewportMatch(Component)))
    in NavigateRegions(WithViewportMatch(Component)) (created by e)
    in e (created by RemountOnPropChange(e))
    in RemountOnPropChange(e)
    in Unknown (created by WithDispatch(NavigateRegions(WithViewportMatch(Component))))
    in WithDispatch(NavigateRegions(WithViewportMatch(Component))) (created by r)
    in r (created by RemountOnPropChange(r))
    in RemountOnPropChange(r)
    in WithSelect(WithDispatch(NavigateRegions(WithViewportMatch(Component))))
    in t
    in t (created by t)
    in t (created by t)
    in t (created by t)
    in t (created by e)
    in e (created by RemountOnPropChange(e))
    in RemountOnPropChange(e)
    in Unknown (created by WithDispatch(t))
    in WithDispatch(t)
    in Unknown (created by r)
    in r (created by RemountOnPropChange(r))
    in RemountOnPropChange(r)
    in WithSelect(Component) react-dom.24169eaf.js:526:7
Warning: React does not recognize the 'isSaving' prop on a DOM element. If you intentionally want it to appear in the DOM as a custom attribute, spell it as lowercase 'issaving' instead. If you accidentally passed it from a parent component, remove it from the DOM element.
    in div (created by t)
    in t (created by r)
    in r (created by RemountOnPropChange(r))
    in RemountOnPropChange(r)
    in WithSelect(t)
    in div
    in Unknown (created by r)
    in r (created by RemountOnPropChange(r))
    in RemountOnPropChange(r)
    in WithViewportMatch(Component) (created by NavigateRegions(WithViewportMatch(Component)))
    in div (created by NavigateRegions(WithViewportMatch(Component)))
    in NavigateRegions(WithViewportMatch(Component)) (created by e)
    in e (created by RemountOnPropChange(e))
    in RemountOnPropChange(e)
    in Unknown (created by WithDispatch(NavigateRegions(WithViewportMatch(Component))))
    in WithDispatch(NavigateRegions(WithViewportMatch(Component))) (created by r)
    in r (created by RemountOnPropChange(r))
    in RemountOnPropChange(r)
    in WithSelect(WithDispatch(NavigateRegions(WithViewportMatch(Component))))
    in t
    in t (created by t)
    in t (created by t)
    in t (created by t)
    in t (created by e)
    in e (created by RemountOnPropChange(e))
    in RemountOnPropChange(e)
    in Unknown (created by WithDispatch(t))
    in WithDispatch(t)
    in Unknown (created by r)
    in r (created by RemountOnPropChange(r))
    in RemountOnPropChange(r)
    in WithSelect(Component) react-dom.24169eaf.js:526:7
Warning: React does not recognize the 'isDirty' prop on a DOM element. If you intentionally want it to appear in the DOM as a custom attribute, spell it as lowercase 'isdirty' instead. If you accidentally passed it from a parent component, remove it from the DOM element.
    in div (created by t)
    in t (created by r)
    in r (created by RemountOnPropChange(r))
    in RemountOnPropChange(r)
    in WithSelect(t)
    in div
    in Unknown (created by r)
    in r (created by RemountOnPropChange(r))
    in RemountOnPropChange(r)
    in WithViewportMatch(Component) (created by NavigateRegions(WithViewportMatch(Component)))
    in div (created by NavigateRegions(WithViewportMatch(Component)))
    in NavigateRegions(WithViewportMatch(Component)) (created by e)
    in e (created by RemountOnPropChange(e))
    in RemountOnPropChange(e)
    in Unknown (created by WithDispatch(NavigateRegions(WithViewportMatch(Component))))
    in WithDispatch(NavigateRegions(WithViewportMatch(Component))) (created by r)
    in r (created by RemountOnPropChange(r))
    in RemountOnPropChange(r)
    in WithSelect(WithDispatch(NavigateRegions(WithViewportMatch(Component))))
    in t
    in t (created by t)
    in t (created by t)
    in t (created by t)
    in t (created by e)
    in e (created by RemountOnPropChange(e))
    in RemountOnPropChange(e)
    in Unknown (created by WithDispatch(t))
    in WithDispatch(t)
    in Unknown (created by r)
    in r (created by RemountOnPropChange(r))
    in RemountOnPropChange(r)
    in WithSelect(Component) react-dom.24169eaf.js:526:7

Publishing waits forever….