What are the widgets you’re trying to use? What is the content?
Display WordPress Post widget by Jetpack.
You should post this on the plugin’s support page:
https://wordpress.org/support/plugin/jetpack
It’s the very last 4 widgets at the bottom of the site(s) and they contain links and info to the other sites.
I’ve posted the problem on jetpack’s support page as suggested. Let’s hope somebody can help us with this as it is important to have these widgets working.
Thanking you in return,
Kath