B1 Host 1.13 do not appear in unassigned

It was really nice to see my old B1, Basic R1 and POW R1 appear on the iHost. A pleasant surprise.
I can’t find the B1 and basic though. The POW R1 were both in “unassigned” but the two B1s and basic R1 I can’t find. Also the basic R1 name is an old name and not the current one used in the eWeLink App and shared to google home. About two weeks ago I changed the name.
How can I find them? Thanks, Eerke