I'm having this issue again. I was on the current Stable build. I wanted to check if it was fixed so I switched to the Develop branch. I have my game saved 2 days prior to the scenario ending and have tried several times. Unfortunately it never let's me enter my name and as a result it never marks that I've completed the Scenario.
OS: Windows 10 64-Bit
Version: 0.1.2-develop build 1f456d3