Just make a friendly bug report / feature request. We've shown to be responsive to those the entire year. Just attach a screenshot, tell us what you think is wrong and we'll look at it.
In this particular example we set the limit of the number of labels to 500, instead of a 1000. This was with batching in mind. We simply forgot to adjust that if you disable batching.
We'll take it into account for the next hotfix, set for upcoming weekend.