Allowing the access to the SD card
When you launch the game on devices running OS Android 6,0+, a dialog window pops up and offers to ensure the access of the game to SD card. This is required for a full use of all features of Labirinth. In particular, it is necessary to download unique levels and to save the maps created by means of the editor.
If you have selected the option "No" during the pop-up of the dialog window, you can always allow the access by going to the section with settings, selecting the relevant item and clicking "Yes". This button disappears in the settings menu after that.