I’m running InDesign CC2017 on PC. Some time in the last few days my Master Page icons have vanished from the pages panel.
I’ve checked in Panel Options that I’ve got the Masters thumbnails set to large and show thumbnails is checked.
I also made sure that Show Master Items was correct in the Master Pages menu.
I’ve also rebooted with a Shift-Ctrl-Alt and deleted the InDesign prefs.
Any ideas anybody?