The problem with using Forscan easy mode is that the changes may affect more than what they are supposed to or are just incorrect.
To use an example, when I turned the ice warning indicator on using easy mode on my 2014 Fusion Hybrid's cluster it disabled my heat and threw a DTC because it couldn't find the PTC heater (the setting was really for an Fusion Energi). I had to use AB mode to make the change correctly.
Turn signal change probably isn't your problem, I'm going to guess it's in the disabling of the auto start/stop.
It's easy enough to find out if the changes are responsible, backup your current config and reload the modules with the factory AB. If it starts working again it's your change in the logic.