Second Orion not visible in the device list

We have commissioned a 4x4 installation with 2x OrionXS 50A connected to an Ekrano.

All running the latest official release FW.
At the workshop both Orions appeared in the device list.

In Workshop

However about a day later once the customer had put a few hundred kilometres between us, he noticed only one Orion was showing. Tried rebooting the Ekrano. No changes (and yes comms cables were checked)

When we access the system over the VRM we can see both Orions displayed. Confirmed he was looking at the same time at the physical screen, only the one labelled left is showing.
Switching to the classic GUI both showing the device list - which is where we have left it for now.

Customer

VRM Remote Console

Classic GUI

I’ve nothing definitive to add, but it’s curious that the customer has the option to remove disconnected devices but that doesn’t appear in the remote console. I’d probably select that and see if it clears things up.

Both orions working in the same direction ?

Both orions are charging the same battery bank from the same source, so they are in parallel.

Also tiggered heads scratching here :rofl:
Decided the UI switch was safer. (He is not tech fluent)