I use a lot of extensions from the GNOME tweak tool, and normally when I sleep the laptop and wake up they are all still enabled and functioning. However just now when I woke up the laptop all of the extensions were disabled.
Further, when I go to the tweak tool and try to enable any extension, the button says ON yet the effect of the extension doesn't happen. If I close the tweak tool and reopen it the extension says OFF again.
This is the second time this has happened, the first time I rebooted to fix it.
I'm using Ubuntu GNOME 16.04.3 64-bit.
Edit: Even trying to enable an extension from the terminal fails, it says "'extension' is now enabled." yet the extension doesn't work. Trying the command agains says "'extension' is already enabled."