[1.09] Asset Tab issue

[AntoneT]

Using 1.09, I have the occasional issue where the Asset Tab on the bottom stops working correctly when I select the "1" filter that should only show Assets in that specific hex. Occasionally, it won't show anything even if there is something in the hex and can only be resolved by reloading the game at which point it works Ok for a while. I not been able to identify anything specific that triggers the bug. Reloading a save game, even when saved with the Asset Tab filter not working correctly, resolves the issue for a while until it reappears.