Since you are using a Windows PC, I would verify that both Roon.exe and RAATServer.exe have been added as exceptions to your Windows firewall.
You can use these instructions to add the exceptions and the executables themselves would be located in your Database Location/Application folder path.
I would also add these exceptions to any Antivirus or other Firewall blocking applications you may have and ensure that you connected to your network via a Private network, not a Public one, see this guide for more information.
Fixed !
For some reason, after the update, the executables were no longer allowed to go through the firewall.
I re-enabled this and now all endpoints show up
Thank you for the support!
Happy to help @Kelsen_Balstriel! Yes, sometimes Windows updates will revert firewall settings from what we’ve seen, especially when both Windows Updates and Roon build updates happen around the same time. Either way, glad to hear that re-adding the exceptions resolved the issue!