I've encountered what looks like a bug for the PC version of the StringApp, it will only allow the Results Panel to be shown for MCL clustered networks for some of the clustering thresholds. Otherwise it will diasppear and the View>Show Results Panel will be greyed out.
Version: 3.9.1
Java: 11.0.6 by AdoptOpenJDK
Java Home: c:\program files\common files\i4j_jres\11.0.6
OS: Windows 10 10.0 - amd64
stringApp, version=2.0.1
yFiles Layout Algorithms, version=1.1.3
cyBrowser, version=1.3.11
CX Support, version=2.8.1
cyChart, version=0.3.1
enhancedGraphics, version=1.5.5
FileTransfer, version=1.3
Legend Creator, version=1.1.6
NetworkAnalyzer, version=4.4.8
clusterMaker2, version=2.3.4