Index: lams_common/src/java/org/lamsfoundation/lams/qb/service/QbService.java
===================================================================
diff -u -rd578cfde655760533b6ede422e7cf675a8c4ca6d -ra75227caf7b39b015d53b73a473bc23738a04bdd
--- lams_common/src/java/org/lamsfoundation/lams/qb/service/QbService.java	(.../QbService.java)	(revision d578cfde655760533b6ede422e7cf675a8c4ca6d)
+++ lams_common/src/java/org/lamsfoundation/lams/qb/service/QbService.java	(.../QbService.java)	(revision a75227caf7b39b015d53b73a473bc23738a04bdd)
@@ -862,7 +862,8 @@
 	    Set<String> nameWithoutUserAnswer = new LinkedHashSet<>(List.of(alternatives));
 	    nameWithoutUserAnswer.remove(answer);
 	    name = nameWithoutUserAnswer.isEmpty() ? ""
-		    : nameWithoutUserAnswer.stream().collect(Collectors.joining(QbUtils.VSA_ANSWER_DELIMITER));
+		    : nameWithoutUserAnswer.stream().filter(StringUtils::isNotBlank)
+			    .collect(Collectors.joining(QbUtils.VSA_ANSWER_DELIMITER));
 	    previousOption.setName(name);
 	    qbDAO.update(previousOption);
 	    qbDAO.flush();