Friendly instances label not updating
In Admin -> Federation -> "Friendly instances" there is the label field (the one with "The label to show in instances of others"). When this field is updated, the new value does not get synchronized with the value showed in other instances.
To give you an idea: instance A has "Cuneo" as the value for this field -> instance B adds A among its friendly instances -> B's friendly instances list shows A with the label "Cuneo". Then A changes the field value to "Torino" -> the friendly instances list in B keeps displaying "Cuneo", whereas each instance that now adds A in their friendly instances list gets "Torino".
Tested between instances updated to v1.6.10.