I have made an Android Wear watch face which has a function that retrieves calendar events using WearableCalendarContract. 
Starting a few days ago it now returns null data in fields concerning start/stop minutes and start/stop days and I cannot make it work again.

The code looks like this:

```
private final String[] PROJECTION = {
                CalendarContract.Calendars._ID,         // 0
                CalendarContract.Instances.TITLE,       // 1
                CalendarContract.Instances.START_MINUTE,// 2
                CalendarContract.Instances.END_MINUTE,  // 3
                CalendarContract.Instances.ALL_DAY,     // 4
                CalendarContract.Instances.START_DAY,   // 5
                CalendarContract.Instances.END_DAY,     // 6
                CalendarContract.Events.DISPLAY_COLOR,  // 7
                CalendarContract.Instances.DESCRIPTION, // 8debug
                CalendarContract.Instances.DTSTART,
                CalendarContract.Instances.DTEND,
                CalendarContract.Instances.CALENDAR_TIME_ZONE,
                CalendarContract.Instances.DURATION
        };

private List<CalEvent> queryEvents() {
            List<CalEvent> events = new ArrayList<>();
            long begin = currentTimeMillis();
            Log.d(TAG, "********** In queryEvents **********");
            Uri.Builder builder = WearableCalendarContract.Instances.CONTENT_URI.buildUpon();
            ContentUris.appendId(builder, begin);
            ContentUris.appendId(builder, begin + DateUtils.DAY_IN_MILLIS / 2); // 12 hours ahead

            final Cursor cursor = getContentResolver()
                    .query(builder.build(),
                            PROJECTION,
                            null, // selection (all)
                            null, // selection args
                            null);

            // get the start and end time, and the color
            while (cursor != null && cursor.moveToNext()) {
                String title = cursor.getString(1);
                int startMinute = cursor.getInt(2);
                int endMinute = cursor.getInt(3);
                int allDay = cursor.getInt(4);
                int startDay = cursor.getInt(5);
                int endDay = cursor.getInt(6);
                int color = cursor.getInt(7);
                Log.d(TAG, "********** Title: " + title + ", start: " + startMinute + ", end: " + endMinute);
                for (int i = 0; i < cursor.getColumnCount(); i++) {
                    Log.d(TAG, "********** cursor.isNull(" + i + ") = " + cursor.isNull(i));
                }
                events.add(new CalEvent(title, startMinute, endMinute, allDay, startDay, endDay, color));
            }

            cursor.close();
            Log.d(TAG, "********** QueryEvents: Read " + events.size() + " events");
            Collections.sort(events);
            return events;
        }

```

Result for first event (exactly the same pattern for null fields for the rest), why are the important time related fields all null?

```
********** In queryEvents **********
********** Title: Test event, start: 0, end: 0
********** cursor.isNull(0) = false
********** cursor.isNull(1) = false
********** cursor.isNull(2) = true
********** cursor.isNull(3) = true
********** cursor.isNull(4) = false
********** cursor.isNull(5) = true
********** cursor.isNull(6) = true
********** cursor.isNull(7) = true
********** cursor.isNull(8) = false
********** cursor.isNull(9) = true
********** cursor.isNull(10) = true
********** cursor.isNull(11) = true
********** cursor.isNull(12) = true

```

In the manifest file I have 
`<uses-permission android:name="android.permission.READ_CALENDAR" />` and it is also granted on the watch. 
This function has been working flawlessly since 2 months and the current release definitely worked when I released it May 6th. I suspect the latest Android Wear update 4 days ago but since I haven't found anyone else that have reported this problem it's probably my own fault...
Very thankful for any input!

Thank you
Torkel