I just discovered an ugly bug in the Dynamic Filters feature introduced in version 18.104.22.168: If your graph is undirected and you click Dynamic Filters in the graph pane, you'll get an "Assertion Failed" message box containing a bunch of techo-nonsense.
(I know what the nonsense means, but it's something that users are never supposed to see.) I'll fix the problem in the next version.
In the meantime, if you want to use dynamic filters on an undirected graph, you have to lie to .NetMap. Tell it that the graph is actually directed (you do this with Graph Type in the Graph group of the .NetMap ribbon), and if you don't like the resulting
arrows that show up in the graph, you can turn them off by clicking Options in the graph pane and settings the Arrow Size to 0.