I’ve noticed this issue as well. It still continues to fly your plan regardless.
In my case, I have Navigraph open on my other screen with my course plotted, so I can follow my progress there right on my approach plate. And you can do the same with Little NavMap.
While it’s definitely an annoying issue, it’s not quite a show stopper. Now if it were to stop following your flight plan, that would be another issue altogether.
The irony is this is a new bug that was introduced in an update that for months had been touted as being THE update where the Garmins would finally be fixed.