Using apostrophe key or checking AI Debug in viewport->show doesn’t actually show the AI Debug Gizmos in playmode. Not sure if it is a bug or I am missing something.
Rebind the activation key from the project settings by clicking on your desired key while assigning it. The expected key might not actually be the apostrophe key in your specific keyboard layout.
Had to edit the post to change the phrase “editor preferences” with “project settings” because this answer was shown at the top of the search results if searched correctly
I tried binding it to various keys, which never worked, so I just swapped to US keyboard layout. At least that works for all other keybinds. Nonetheless if I check viewport->show AI Debug shouldnt that show the debug gizmo regardless of any hotkey?
Right now It feels like it doesnt have to do with the hotkey. Like I said no matter what I bind it to or what keyboard layout I use or whether I enable it from viewport, it doesnt show.
Update: I got it to work with US Layout, but as I have mentioned before rebinding the keys to anything else doesn’t work.
Tried F12, Ö, Ä, #, B with and without shift/ctrl modifiers.
Not from there 
My bad for saying to adjust it from the editor preferences. It’s actually done from the project settings. Here:
Hope this helps 
Hey @nyan23, it’s been a while since we last heard from you! Did rebinding the activation key from the project settings work for your Non-English keyboard layout?