This was actually a known issue and clearing caches did not help. After the latest update I completely deleted my manual cache and in testing for this I deleted and turned off rolling cache, as mentioned in my earlier post, none of which resolved the issue.
Note that the community manager @OlieTsubasa443 in his post HERE advised that the issue has been resolved. I tried another flight over Horseshoe Bay and indeed: all good! Great work Asobo!