Daniel Fenton
I am having the same problem as in issue 1 in the original post.
When trying to download a large dataset (25,000 polygon features) the progress will stay at 0% for a few minutes, then say "An error occurred while processing this dataset". I've been testing our site over the last week or so and find this occurs on this particular dataset most times I try download it. On other datasets is happens at various tiems but not so frequently.
This is the dataset here Dataset | Marlborough District Council Open Data
The data comes from this 10.2.2 service Layer: Property (ID: 36)