All request chests in the network have the same problem, they are getting a very little amount of the resources they need, also there are a lot of available logistic robots in the network.
This is a screenshot of one of the requester chests (most of the chests don't work as they used to anymore):

This used to work properly before, and the majority of the robots were being used.
I attached my save to someone that could figure this out.
Thanks!