diff --git a/src/main/java/ch/ethz/seb/sebserver/gbl/util/Utils.java b/src/main/java/ch/ethz/seb/sebserver/gbl/util/Utils.java
index a33aac64..837ab496 100644
--- a/src/main/java/ch/ethz/seb/sebserver/gbl/util/Utils.java
+++ b/src/main/java/ch/ethz/seb/sebserver/gbl/util/Utils.java
@@ -618,7 +618,7 @@ public final class Utils {
     }
 
     public static String toAppFormUrlEncodedBody(final String name, final Collection<String> array) {
-        final String _name = name.contains(String.valueOf(Constants.SQUARE_BRACE_OPEN))
+        final String _name = name.contains(String.valueOf(Constants.SQUARE_BRACE_OPEN)) || array.size() <= 1
                 ? name
                 : name + Constants.SQUARE_BRACE_OPEN + Constants.SQUARE_BRACE_CLOSE;
 
diff --git a/src/main/java/ch/ethz/seb/sebserver/webservice/servicelayer/lms/impl/CourseAccess.java b/src/main/java/ch/ethz/seb/sebserver/webservice/servicelayer/lms/impl/CourseAccess.java
index 9640f0c8..7de42a0b 100644
--- a/src/main/java/ch/ethz/seb/sebserver/webservice/servicelayer/lms/impl/CourseAccess.java
+++ b/src/main/java/ch/ethz/seb/sebserver/webservice/servicelayer/lms/impl/CourseAccess.java
@@ -18,6 +18,9 @@ import java.util.function.Function;
 import java.util.function.Supplier;
 import java.util.stream.Collectors;
 
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
 import ch.ethz.seb.sebserver.gbl.Constants;
 import ch.ethz.seb.sebserver.gbl.async.AsyncService;
 import ch.ethz.seb.sebserver.gbl.async.CircuitBreaker;
@@ -31,6 +34,8 @@ import ch.ethz.seb.sebserver.webservice.servicelayer.lms.LmsAPIService;
 
 public abstract class CourseAccess {
 
+    private static final Logger log = LoggerFactory.getLogger(CourseAccess.class);
+
     protected final MemoizingCircuitBreaker<List<QuizData>> allQuizzesRequest;
     protected final CircuitBreaker<Chapters> chaptersRequest;
     protected final CircuitBreaker<ExamineeAccountDetails> accountDetailRequest;
@@ -103,6 +108,7 @@ public abstract class CourseAccess {
     public String getExamineeName(final String examineeSessionId) {
         return getExamineeAccountDetails(examineeSessionId)
                 .map(ExamineeAccountDetails::getDisplayName)
+                .onError(error -> log.warn("Failed to request Moodle user-name for ID: {}", error.getMessage(), error))
                 .getOr(examineeSessionId);
     }