diff --git a/scripts/ASTImportTest.sh b/scripts/ASTImportTest.sh
index daf5a6163..ccb8cde03 100755
--- a/scripts/ASTImportTest.sh
+++ b/scripts/ASTImportTest.sh
@@ -122,7 +122,7 @@ do
         testImportExportEquivalence "$solfile"
     elif [ ${SPLITSOURCES_RC} == 2 ]
     then
-        # The script will exit with return code 2, if an UnicodeDecodeError occurred.
+        # Return code 2 means an exit due to UnicodeDecodeError in the input file.
         # This is the case if e.g. some tests are using invalid utf-8 sequences. We will ignore
         # these errors, but print the actual output of the script.
         echo -e "\n${OUTPUT}\n"
@@ -130,7 +130,6 @@ do
     else
         # All other return codes will be treated as critical errors. The script will exit.
         echo -e "\nGot unexpected return code ${SPLITSOURCES_RC} from ${SPLITSOURCES}. Aborting."
-        echo -e "\n${OUTPUT}\n"
 
         cd "$WORKINGDIR"
         # Delete temporary files
diff --git a/scripts/splitSources.py b/scripts/splitSources.py
index 0d951dc1f..c055d683d 100755
--- a/scripts/splitSources.py
+++ b/scripts/splitSources.py
@@ -77,7 +77,4 @@ if __name__ == '__main__':
             sys.exit(1)
 
     except UnicodeDecodeError as ude:
-        print("UnicodeDecodeError in '" + filePath + "': " + str(ude), file=sys.stderr)
-        print("This is expected for some tests containing invalid utf8 sequences. "
-              "Exception will be ignored.", file=sys.stderr)
         sys.exit(2)
diff --git a/test/stopAfterParseTests.sh b/test/stopAfterParseTests.sh
index 503c43579..1c5498509 100755
--- a/test/stopAfterParseTests.sh
+++ b/test/stopAfterParseTests.sh
@@ -58,9 +58,8 @@ while read -r file; do
 	then
 		echo -n "<skipping utf8 error>"
 	else
-		echo "Received unexpected return code $RETURN_CODE while processing $file: "
-		echo "-----"
-		echo "$OUTPUT"
+		# NOTE: The split script is expected to print error details to stderr in this case.
+		echo "$SPLITSOURCES exited with code $RETURN_CODE while processing $file."
 		exit 3
 	fi