For unknown reasons, the weight functions sometimes return empty arrays. This should only happen if they are passed an empty catalog, which should always be caught much earlier. I have put together a work around but will need to diagnose it in the future.
For unknown reasons, the weight functions sometimes return empty arrays. This should only happen if they are passed an empty catalog, which should always be caught much earlier. I have put together a work around but will need to diagnose it in the future.