Sometimes you may come across the error "Failed to update binding information" when trying to import bindings for a BizTalk application.
Your bindings may indeed be correct, and you likely also have the proper Host created (you checked THREE times already!). However, you may not have added the host within the BizTalk Adapters.
This is especially common when building a new BizTalk server or have a BizTalk application which will be using a new Host.