Site Evaluaton being Postponed?

Hi Folks,

Does anyone have a reference for what the following message means? I enabled debugging
on some clients and I keep seeing it in the client evaluation cycle logs.

Fri, 25 Oct 2019 13:10:09 +0000
Evaluation resume postponed, site not marked for evaluation: Patches for Ubuntu 1804

these same client are having trouble consistently reporting their patch status but I can’t
see reason why.

Thanks!