“Ready and Waiting”

Hello,

I have noticed that in recent I have had many feeds that have been saying “Ready and waiting to be updated since…” and then provided a certain time.

It seems fairly random of which feeds work, and which don’t, and the times vary as well. For example, some of them will show this for a day or two, while some will only be a couple hours before they go, and I’ve even had some which have stayed in this state until I manually upload.

Any suggestions of what might be causing this?