14.15 update broke my golf - Venu 3 will no longer open my Golf course

Summer is here so we are back to our summer golf course. Last year I was happily using my Venu 3 to play this version of the course.

The update to 14.10 happened just before the course change over, and the problem continues in 14.15.

The norm is to press button A to open the choices, select Golf, allow the watch to find the GPS satellites, and select the course to play. The Venu 3 then downloads the course. Pressing button A should then open the course, make me select Mens or Ladies even though it is ALWAYS the same (do they think I change sex from time to time?), and show the first hole.

It doesn't. Instead of opening the course, it kicks me back to the Apps and Activities menu.  The watch will happily let me load and play the winter course but the holes are not all the same. So far it has happened many times whilst waiting to tee off and further attempts during recent rounds.

I've tried deleting the courses from both the Garmin Connect app and the Garmin Golf app on my phone, and reloading them. I've restarted the watch umpteen times. I was about to post and found that there was an update, so I've updated to 14.15 and it still doesn't work as it should. This evening I have tried many times. 4 failed, one actually loaded the course. But then I tried again many more times, and each failed.

Since 14.10, and now 14.15, the course has only twice (whilst at home) loaded and appeared ready to play - but it is not repeatable either at home or at the course. 

Other local courses will download and open but clearly that is no use.

How can I get my watch to open Durham City Golf Club course?