Syndication Summary/Full

Greetings… I could not search for my answer as the forum/search function here was bogged down and timing out. Apologies in advance…

I have 2 blogs. I syndicate one on the other. When Blog A goes out and gets content from Blog B, the summary (and not the full entry) is posted.

I went to the dashboard (Options -> Reading) and highlighted the “Full Text” option under ‘Syndication Feeds’. When I save that option, it is reverting back to ‘Summary’ by itself.

Help.

Thanks!