Multisite shows Staging Environment

When the WordPress 5.5.1 update ran the Version Info plugin was disabled and labeled “Not Found” on my multisite. I reinstalled and activated the plugin but the info in the footer indicates the Environment as “Staging” on all sites. I went through the process of “Upgrade Network” and nothing changed.
I have another stand-alone site that has this plugin installed. The plugin was not disabled during update and that site shows Environment as “Production”.
Why is my multisite labeled as Staging? It appears to be functional on the front end.