Label exists filter widget

[LauraGuthschmidt]

When editing the filter widget, I can't save the setting, because it keeps telling me the label exists. Even if I configure a new filter widget I get this result. This didn't happen before I added a second layer, which I have now removed. After removal, I still get the same message.
What can I do to solve this?

[MazenElzeiny]

Webapp builder refuses to give same label to different widgets. make sure you do not have a different widget with same name

[Chris_Anderson]

Has anyone heard from ESRI about this? I am having this issue with the "About" widget in Web App builder. I have tried using Google Chrome and Firefox.

My workaround at the moment is to change the label to something else while developing, then change the label to the correct text at the end.