Check the audit trail section of the transaction detail, also. It should show you where the breakdown is happening if the logs don't. I ran into an issue with literally 1 sat of ecash breaking my whole transaction. It was spent and got left in there somehow. There's an option under backup and recovery to fix it.
Discussion
I don't understand what I'm looking at, in the detail.
I don't either, in fine detail, but I know the gist of a normal send. The big thing is that you don't get an error anywhere. You may have to expand everything to see it. Basically you'll see "draft" then "prepared" and "completed" if it went through. It will tell you which step is failing.