@FernandoCagua, we have had similar issues reported previously:
But we never heard back if 30k data could be downloaded normally using the UI i.e. using the DATA>Download for the KPI. Maybe you could help us update this through the post.
Besides, you also mentioned that the cURL command is also not working. Does it work if the data size is less than 30k? The community would also like to help you by testing the command line you have used to see if there are any issues there.
