Driving 3 Mosfets with a MSP430FR4133 from 0% to 100% Duty Cycle
After much testing I finally found the solution. This Article States that :


  For high current MOSFETs the Gate Channel Capacitance can be very high and a rapidly changing drain voltage can produce milliamps of transient Gate current.  This could be enough to overdrive and even damage delicate CMOS driver chips. Having a series resistor is a compromise between speed and protection, with values of 100R to 10K being typical. Even without inductive loads there is dynamic gate current. Also, MOSFETs are extremely susceptible to damage caused by electrostatic discharge and can be damaged irreversibly by a single instance of Gate breakdown. For this reason it is a very good idea to use gate series resistors of 1K to 10K.  This is especially important if the Gate signal comes from another circuit board. 


After Reading this I changed my Series Gate Resistor to 1k and the problem vanished entirely. It would appear that when your a higher frequency with a capacitive load you need a higher Series Gate Resistor.