I have very similar problem as described in
Another strange behavior: there is no information from computers with Agent ver 9.1. installed in "ESET Applications" dashboard, but there is full information about them in "Computers" tab. There is no information of outdated/actual state of eset products In computer "Overview" window, "Product & Licenses" panel. But "Everything is OK", no alerts, "Module status: Updated", last connection time is actual...