Index: /applications/editors/josm/plugins/opendata/src/org/openstreetmap/josm/plugins/opendata/core/io/tabular/CsvReader.java
===================================================================
--- /applications/editors/josm/plugins/opendata/src/org/openstreetmap/josm/plugins/opendata/core/io/tabular/CsvReader.java	(revision 34189)
+++ /applications/editors/josm/plugins/opendata/src/org/openstreetmap/josm/plugins/opendata/core/io/tabular/CsvReader.java	(revision 34190)
@@ -43,5 +43,5 @@
         try {
             return csvReader.parse(in, instance);
-        } catch (IllegalArgumentException e) {
+        } catch (IllegalArgumentException | IllegalDataException e) {
             if (csvHandler == null || csvHandler.getSeparator() == null || ";".equals(csvHandler.getSeparator())) {
                 // If default sep has been used, try comma