The first Hotfix for v1.21.3 Testing Build has been released. This fixes a crash when trying to start a year 2020 game with Base Map and the Europe Map. I also made some additional adjustments to the new Buyer purchasing power formula, tweaked dealership growth rates, adjusted AI marketing, and tweaked difficultly level's random bias.
If you would like to try out Testing Build, here is a tutorial on how to switch versions: http://www.ventdev.com/forums/showthread.php?tid=2594
-Fixed 2020 Starting Year Crashes on two maps.
-More Adjustments to Buyer Purchasing Power Formula
-Increased Dealership growth rates and decreased Dealership death rates.
-Adjusted AI Marketing triggers.
-Reduced Difficulty Random Bias favor to AI.