push(url) generates error

[mikbur]

const routesMap = {
FOO: {
path: '/:client/:area?'
},
let url='/foo/bar'

this.props.dispach(push(url))=>url changes but afte a while(3seconds) this error occurs:

dispatch
C:/Projekt/mmkng/my-app/node_modules/redux-first-router/dist/es/connectRoutes.js:211
  208 | return function (action) {
  209 |   // We have chosen to not change routes on errors, while letting other middleware
  210 |   // handle it. Perhaps in the future we will explicitly handle it (as an option)
> 211 |   if (action.error) return next(action); // code-splitting functionliaty to add routes after store is initially configured
      | ^  212 | 
  213 |   if (action.type === ADD_ROUTES) {
  214 |     var _selectLocationState2 = selectLocationState(store.getState()),

If I instead use this code I do not get the error:
Let action=pathToAction(Url)
this.props.dispatch(action)
In redux-logger I see that the action is run twice but for dispatch(push) it is only logged once.

The different actions look thesame except the second meta.prev.pathname differs
actions logged with discpatch(push(url))
{ type: 'FOO', payload: { client: 'foo', subpage: 'bar' }, meta: { location: { current: { pathname: '/foo/bar', type: 'FOO', payload: { client: 'foo', subpage: 'bar' } }, prev: { pathname: '/foo/', type: 'FOO', payload: { client: 'foo' } }, kind: 'push' } } }
actions logged with discpatch(action)
{ type: 'FOO', payload: { client: 'foo', subpage: 'bar' }, meta: { location: { current: { pathname: '/foo/bar', type: 'FOO', payload: { client: 'foo', subpage: 'bar' } }, prev: { pathname: '/foo/bar', type: 'FOO', payload: { client: 'foo', subpage: 'bar' } }, kind: 'push' } } } { type: 'FOO', payload: { client: 'foo', subpage: 'bar' }, meta: { location: { current: { pathname: '/foo/bar', type: 'FOO', payload: { client: 'foo', subpage: 'bar' } }, prev: { pathname: '/foo', type: 'FOO', payload: { client: 'foo' } }, kind: 'push' } } }