X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=src%2Fjalview%2Fviewmodel%2FAlignmentViewport.java;h=0ea31d7bcf4f4015bed0e4e22b8036ef19c0c6ec;hb=40d9c9f294735841777e3a387458f1085987571b;hp=0f565614511a17a8a022af614d73acbe31a488ec;hpb=250e53ccab49a91570c00e4f64f565a509db9e68;p=jalview.git

diff --git a/src/jalview/viewmodel/AlignmentViewport.java b/src/jalview/viewmodel/AlignmentViewport.java
index 0f56561..0ea31d7 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(sg, hiddenRepSequences));
+        sg.setColourScheme(
+                cs == null ? null : cs.getInstance(sg, hiddenRepSequences));
         if (cs != null)
         {
           sg.getGroupColourScheme().alignmentChanged(sg,