Seq may be null if hide has occurred

diff --git a/src/jalview/appletgui/SeqCanvas.java b/src/jalview/appletgui/SeqCanvas.java
index 13a0ec8..dc7911d 100755 (executable)
--- a/src/jalview/appletgui/SeqCanvas.java
+++ b/src/jalview/appletgui/SeqCanvas.java
@@ -584,6 +584,9 @@ public class SeqCanvas
         {\r
             nextSeq = av.alignment.getSequenceAt(i);\r
 \r
+            if(nextSeq==null)\r
+              continue;\r
+\r
             sr.drawSequence(nextSeq, av.alignment.findAllGroups(nextSeq),\r
                             startRes, endRes,\r
                             offset + ( (i - startSeq) * av.charHeight));\r