Thanks for confirming.
I was looking at the systems assigned your company, and I assume the system in question was the 3A1C (it was the only one running 0.5.88). We are were showing this system as offline on the server side. But, I could see where the status was showing it online for the apps and web. I sent the servers a command to refreshed the available list of online panels that is presented to the web and apps. It appears it is showing offline now.
I assume there is some sort of connectivity issue preventing the system to communicate with the servers.
I will ask engineering to dig into the issue of why it didn’t refresh in the list when the system was not online.