Aria-hidden on a focused element

[dcdenu4]

When debugging the application I saw this for the first time in my console:

Blocked aria-hidden on an element because its descendant retained focus. The focus must not be hidden from assistive technology users. Avoid using aria-hidden on a focused element or its ancestor. Consider using the inert attribute instead, which will also prevent focus. For more details, see the aria-hidden section of the WAI-ARIA specification at https://w3c.github.io/aria/#aria-hidden.
Element with focus: button
Ancestor with aria-hidden:

<div aria-labelledby=​"bp5-tab-title_Tabs_explore" aria-hidden=​"true" class=​"bp5-tab-panel" id=​"bp5-tab-panel_Tabs_explore" role=​"tabpanel">
  ​<div id=​"explore" data-testid=​"explore">​…​</div>
​</div>​