Bus Simulator 21 has been updated to version 2.14 today by Stillalive Studios. You can find out the complete patch notes from here.
There is nothing major to add here as this is meant to be a simple hotfix. You can now complete the last mission of the Angel Shores as it was originally expected. There are a couple of other small fixes included as well which you can see below. The developers are working on getting a bigger patch with more fixes out later.
Bus Simulator 21 Update 2.14 Patch Notes
We just released Hotfix 2.14 for Bus Simulator 21. This patch fixes an issue with the last mission of the Angel Shores campaign (called “Perfection”), which can now be completed as expected again. Next to this the “Hiker” achievement of the Seaside Valley map can now be achieved as expected too.
A seperate hotfix for the traffic lights system of the Seaside Valley map as well as the next bigger update including a number of additional fixes and game improvements are already in development and will follow as soon as possible.