It has happened 3 times to me in the last few days. Here are the videos I was streaming and the exact time it happened:
On this one, it happened after I clicked on the NEAREST AIRPORTS (YouTube link):
Clicked on NEAREST AIRPORTS
On this one, it seems like it got frozen also when I clicked on NEAREST AIRPORTS (YouTube link):
Clicked on NEAREST AIRPORTS
On this one, if it was during external view or NEAREST AIRPORTS (YouTube link):
Not sure if NEAREST AIRPORTS or during external view
Not sure if it's relevant but I do use Navigraph and always have the latest AIRAC update.