Hi @Damian Gemza

I just sent you the reproduction application via email.

Dear @junior5417

Still, I'm not able to reproduce this problem. I have tried on Firefox@Ubuntu, Chrome@Ubuntu, Chrome@Mac Mojave (emulator) - hiding modal both from the backdrop and hide button, and there's no such error.

Could you please send me your app, or simple reproduction application via email? You can find me here: d.gemza@mdbootstrap.com

Best Regards,

Damian

You can reproduce the problems by using the code below:

<div mdbModal #newStorePopup="mdb-modal" class="modal fade" id="centralModalSuccess" tabindex="-1" role="dialog"
  aria-labelledby="myModalLabel" aria-hidden="true" [config]="{keyboard: false}"
  style="overflow: auto">
  <div class="modal-dialog modal-notify" role="document">
    <div class="modal-content">

    </div>
  </div>
</div>

and after calling newStorePopup.hide() to close the pop up. Error below will happens and the overlay will be stuck. :(

ERROR TypeError: Cannot read property 'backdrop' of undefined
    at ModalDirective.push../node_modules/ng-uikit-pro-standard/fesm5/ng-uikit-pro-standard.js.ModalDirective.showBackdrop (ng-uikit-pro-standard.js:6758)
    at ModalDirective.push../node_modules/ng-uikit-pro-standard/fesm5/ng-uikit-pro-standard.js.ModalDirective.show (ng-uikit-pro-standard.js:6592)
    at SafeSubscriber._next (pop-up-campaign-info.component.ts:34)
    at SafeSubscriber.push../node_modules/rxjs/_esm5/internal/Subscriber.js.SafeSubscriber.__tryOrUnsub (Subscriber.js:196)
    at SafeSubscriber.push../node_modules/rxjs/_esm5/internal/Subscriber.js.SafeSubscriber.next (Subscriber.js:134)
    at Subscriber.push../node_modules/rxjs/_esm5/internal/Subscriber.js.Subscriber._next (Subscriber.js:77)
    at Subscriber.push../node_modules/rxjs/_esm5/internal/Subscriber.js.Subscriber.next (Subscriber.js:54)
    at ReplaySubject.push../node_modules/rxjs/_esm5/internal/ReplaySubject.js.ReplaySubject._subscribe (ReplaySubject.js:67)
    at ReplaySubject.push../node_modules/rxjs/_esm5/internal/Observable.js.Observable._trySubscribe (Observable.js:43)
    at ReplaySubject.push../node_modules/rxjs/_esm5/internal/Subject.js.Subject._trySubscribe (Subject.js:89)

Could you please tell me, how can I reproduce this problem with errors in console?

Without reproduction steps, I'm not able to help you with your problem.

Best Regards,

Damian

It just a normal modal popup component. and the chances of this case happen is by random. All modal with backdrop will get this problem.

<div mdbModal #newStorePopup="mdb-modal" class="modal fade" id="centralModalSuccess" tabindex="-1" role="dialog"
  aria-labelledby="myModalLabel" aria-hidden="true" [config]="{ignoreBackdropClick: true, keyboard: false}"
  style="overflow: auto">
  <div class="modal-dialog modal-notify" role="document">
    <div class="modal-content">

    </div>
  </div>
</div>

Dear @junior5417

It would be great if you could provide us with some code with which we can reproduce your problem.

Without it, it will be difficult to help you well.

Best Regards,

Damian