Thu Jan 17 2019 15:44:31 UTC
Seeing a bug isn't a problem. The problem is when it disappears.
Hide Search Description
ID Product Comp Assignee Status Resolution Summary Changed
48375 Forms Windows bugzilla RESO DUPL Xamarin Forms Map: Wrong map dimension computation in UpdateVisibleRegion 2017-02-01
One bug found.

as

File a new bug in the "Windows" component of the "Forms" product