Lately, some of us myself included have seen an issue when trying to zoom in on the Navigraph moving map integrated into the PMDG 737 UFT.
When trying to click the plus sign, the map won’t allow you to. It’s almost like every single press on the plus sign results in 3 presses on the minus sign. With the result when you want to zoom in, you end up having the map zoom out instead.
Here’s the same thing discussed over in the PMDG forums. Do note I think you need to be registered there in order to view the thread.
Just did a another test today and didn’t have the issue so not really sure what caused it yesterday.
When I saw the issue yesterday, that was the first time so I’ll keep my fingers crossed it was one of those one-time-only type of issues. Still, with other people reporting having seen the same thing, something clearly is going on somewhere within this integration of the Navigraph charts and the PMDG UFT.