"Screen overlay" issue (installing apps - FP2 Open OS)

Dear community,
Has anybody encountered this little techical issue: when trying to install any app and after allowing the app “to access photos, media, and files on your device” this message pops up (as per screenshot):
“Screen overlay detected: to change…”
Then, I go to settings (as per screenshot indication) but am not really sure of what exactly I should do / where to go! :frowning:
How to “turn off the screen overlay” as requested??
Thanks a lot in advance!! :smiley:

PS: for a bit of context: I have just installed OpenGApps, so maybe that altered a bit my system. But overall it’s working splendidly!!

A post was merged into an existing topic: 6.0 permissions: Screen Overlay detected - unable to change app permission bug