It looks like, there is a memory leak when using Navigator to find invaders. The problem is very consistent today.

My current search range in Navigator is 50 miles. If I scroll it down for a long time (I looked for the Snowkings ), I see the memory problem.

Sometimes, if I reach the end of the list without the memory problem, and then reopen Navigator and scroll again, I see the memory problem.

My computer has 24 GB of physical memory and 8 GB of the paging file. It's really annoying to restart the game each time I use the Navigator.