"Other Cluster" error on device registration

Oddly I have a few elsys elt2’s that I’ve moved over from V2 TTN to V3.
One device worked with no issue.

The second one, when registered is greyed out - I can’t select it, and it’s showing as being in another unnamed `` cluster… Any guidance on how to delete or resolve this issue?

Im quite certain this has only been registered with the AU cluster on V2, and never on V3.

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Please do not double post - it wastes volunteers time & splits effors - closing this thread and keeping earlier one open for you. Recommend you include the additional info added here in an edit to the earlier post. It always helps to include as much, relevant info as possible as is available as soon as possible when posting rather than drip feeding, especially across multiple threads…