I've noticed I've been glancing at the screen to see if the blindspot camera is on in order to know if the signal is on.
It also doesn't change directions quickly. I.e. I have several places where I need to turn right onto a multi-lane road into the right lane (by law) and then put my left turn signal on to make a 3 lane change onto an on-ramp. But the car won't register my second left-turn motion to turn on the left turn signal (the first is 'lost' as the car is interpreting that as a cancellation of the right hand signal.) Today, even holding the indicator stalk down, the left turn signal would not turn on. I had to release and then press again. By then, I was thankful there were no vehicles there that needed to know I was moving across the lanes since my damn car wasn't telling them that. It was Sunday morning so I could play with the system a bit to find out if anything solves this problem quickly. This is new to me, it wasn't a problem I noted at all before our update to 11.4.7.2.