X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=src%2Fjalview%2Fviewmodel%2FAlignmentViewport.java;h=148ea163ca1cc8073099de64dcf7e4ad835e13b3;hb=1f6504bd0b7187c99cd4a2551c15e854d14583b5;hp=850c68eec9c9ff6cbf960121864e0d69109f7cf5;hpb=16d109024847af92482237e43f99b82fd997451a;p=jalview.git

diff --git a/src/jalview/viewmodel/AlignmentViewport.java b/src/jalview/viewmodel/AlignmentViewport.java
index 850c68e..148ea16 100644
--- a/src/jalview/viewmodel/AlignmentViewport.java
+++ b/src/jalview/viewmodel/AlignmentViewport.java
@@ -662,7 +662,8 @@ public abstract class AlignmentViewport
          * retain any colour thresholds per group while
          * changing choice of colour scheme (JAL-2386)
          */
-        sg.setColourScheme(cs.getInstance(this, sg));
+        sg.setColourScheme(
+                cs == null ? null : cs.getInstance(this, sg));
         if (cs != null)
         {
           sg.getGroupColourScheme().alignmentChanged(sg,