You'll notice
Useful1 Signal1
The remote device bind failure message now describes what the server actually rejected.
What's wrong with this entry?
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What
The explanation shown when a remote device bind is rejected now says the server refused an initial event or field sent with the bind, instead of reporting a missing device proof.
Evidence
the server refused an initial event or field sent with the bind
Strings lifted out of the shipped bundle, so the claim above can be checked against them.