Fix #161: NRE when switching vessels

Author: JonnyOThan

CHANGELOG.md

@@ -10,6 +10,8 @@ Please always post your [KSP.log file](https://gist.github.com/JonnyOThan/04c207
 - Add RPMComputer modules to a few B9 Aerospace parts that were missing them
 - Disabled some propbatching when MAS is installed because it interferes with their patches
 - Fix NRE in ExternalCameraSelector when the camera transform is missing
+- Fix possible NRE when changing vessels
+
 
 ## 1.0.2 - 2024-09-24
 

RasterPropMonitor/Core/RPMVesselComputer.cs

@@ -1301,6 +1301,7 @@ private void onVesselChange(Vessel who)
                 // way, the next FixedUpdate will trigger another update after
                 // navBall is ready.
                 timeToUpdate = true;
+                InvalidateModuleLists();
                 UpdateVariables();
                 // Re-trigger the update for the next FixedUpdate.
                 timeToUpdate = true;