Fenix 7 map contours disappear after rendering

Hi,

I just noticed today (29th Dec 2024) that map contours are not rendering correctly. I sometimes see them briefly appear as the map is re-drawn, but they immediate disappear. I have experimented turning off various layers but nothing has helped so far.

I have tried TopoActive maps in isolation, but I also use an alternative map, HikeAndBike-GBR, in combination with a better resolution contour layer, OpenTopoMap Great Britain contours. Neither are now displaying the contours.

I haven't used the map for at least a month so I don't know when it stopped working. I'm on the latest SW version, 19.41.

Is anyone else seeing this problem?

For me the contour information is essential when navigating so I and keen to work out how to resolve it.

Thanks Andy