I'm finishing some large answer imports and want to 'autoadd' the sources. I received the error message trying to save the mapping: "incomplete response received from application". I tried refreshing and attempting again, but this doesn't help.
I'm doing this for a number of large imports and so far it has worked for one (https://wikirate.org/HighLevel_OECD_import_7) not worked for the other
We're probably crossing some character threshold on the request. I think you'll have to break it into smaller imports.
I figured out a way to raise that threshold. Quadrupled for now.