Howdy --
Currently running v12.1.14 for navionics.  Studying routing results for passage from Hawaii to San Francisco using historical reanalysis data (Copernicus).  When I zoom out the continent disappears, but Hawaii displays fine.   By zooming  back in the continent reappears.  So far this has not been a big problem, just an annoyance. 

Does anyone know if there is a setting somewhere that fixes this?

Cheers,
Mark