I am trying to download a map offline for a rather large area but it keeps failing with an internal sever error. This map has previously been working fine but now cannot be downloaded. It seems to be a feature class that has attachments causing the problem. If I remove the layer from the map then it downloads fine. Also if I take a smaller area offline it downloads fine. Unfortunately this is not a solution as the larger area is required.
Is there a size limit as to how big a map or size of attachments can be downloaded at once?
The data is from a feature service hosted from our servers not AGOL, but i cannot see any errors in the logs.
Any help would be greatly appreciated.