OnClick Listeners not working after closing full-screen dialog using react-material-ui

I have a problem with a fullscreen dialog that is being closed when the associated "OnClose" function is called. The dialog closes, however i cannot be opened again. Any idea on why this happens? It feels like there is an invisible dialog staying on the canvans that prevents event from being bubbled to the button, or something similar.

import React from "react";
import Button from "@material-ui/core/Button";
import Dialog from "@material-ui/core/Dialog";
import "./FooterBar.css";
import Slide from "@material-ui/core/Slide";
import AppBar from "@material-ui/core/AppBar";
import Toolbar from "@material-ui/core/Toolbar";
import IconButton from "@material-ui/core/IconButton";
import CloseIcon from "@material-ui/icons/Close";

class BarItem extends React.Component {
  constructor(props) {
    super(props);
    this.state = {
      title: props.title,
      targetURL: props.targetURL,
      dialogOpen: false
    };
    this.barItemClicked = this.barItemClicked.bind(this);
    this.handleClose = this.handleClose.bind(this);
  }

  barItemClicked() {
    this.setState({
      dialogOpen: true
    });
  }

  handleClose() {
    this.setState({
      dialogOpen: false
    });
  }

  render(props) {
    const Transition = React.forwardRef(function Transition(props, ref) {
      return <Slide direction="up" ref={ref} {...props} />;
    });
    return (
      <div>
        <Button onClick={this.barItemClicked}>{this.state.title}</Button>
        <Dialog
          fullScreen
          open={this.state.dialogOpen}
          onClose={this.handleClose}
          TransitionComponent={Transition}
        >
          <AppBar>
            <Toolbar>
              <IconButton
                edge="start"
                color="inherit"
                onClick={this.handleClose}
                aria-label="Close"
              >
                <CloseIcon />
              </IconButton>
            </Toolbar>
          </AppBar>
        </Dialog>
      </div>
    );
  }
}

class FooterBar extends React.Component {
  render() {
    return (
      <div class="footerbar">
        <BarItem title="Impressum" targetURL="a" />
        <BarItem title="Datenschutzerklärung" targetURL="b" />
        <BarItem title="Kontakt" targetURL="c" />
      </div>
    );
  }
}
export default FooterBar;

I expect the buttons of the Footerbar to re-open the dialog, but this does not happen.