/v2/send returns 400 "Failed to send message"

[Jones1066]

I've done a clean install of the rest service v0.187 in docker and it is working as expected. The trouble I'm having is that the service is returning 400 "Failed to send message" for one specific user.

This one is a bit strange as the user works normally and without any issues user to user with all all of their signal friends via iOS/android and windows desktop. However, the results of the /v1/identities endpoint returns a blank field for the "number" element for this user, but it has the correct fingerprint and safety number.

When I call the /v1/search endpoint for this user I am getting [{"number":"[redacted]","registered":false}]

Hoping someone might know how to resolve this or if it is a bug.

Thanks for any help!

Jeff