Map choices not saving on 5x!!

Right so I have the Fenix 5x and have a few maps I have installed including KMZ maps in the custommap folder..

Up until recently I could enable and disable maps through the Map App on the watch. and it would save the settings so when ever a widget or app used maps it used what ever my choices was.

So If I chose Custom KMZ's thats all that was displayed or if it was UK OS GB maps with Dem Elevations as well they would be shown and nothing else... Yet recently I have to keep resetting the choices EVERYTIME I use the Map app..  Everytime I open the app EVERYTHING is displayed at once so I have to the go in to settings and change them back to whatever I want yet again...  It has become annoying and a pain.. It never used to happen. If a map was disable it was DISABLED until I enabled it. It was that simple..

Does anyone have any idea why this is happening now and how to resolve it??