Compiler/TMS320F28379D: Uncommon behavior when triggering CLA Task from epwm

Tool/software: TI C/C++ Compiler

Hello,

I'm using a 200Khz PWM to trigger a CLA task, the related code in the PWM configuration function is as follows:

EPWM_setInterruptSource(EPWM8_BASE, EPWM_INT_TBCTR_ZERO ); 
EPWM_enableInterrupt(EPWM8_BASE);
EPWM_setInterruptEventCount(EPWM8_BASE, XU);

in the CLA configuration function:

CLA_setTriggerSource(CLA_TASK_1, CLA_TRIGGER_EPWM8INT);

and the Task1 interrupt:

EPWM_clearEventTriggerInterruptFlag(EPWM8_BASE);

Interrupt_clearACKGroup(INTERRUPT_ACK_GROUP3);

Interrupt_clearACKGroup(INTERRUPT_ACK_GROUP11);

when X is equal to 1 or 2 task 1 won't trigger, only from X=3 Task 1 starts running, which may suggest that code in Task 1 is too long to run in such a small period, however forcing the task and using a GPIO to measure the time it takes the task to run, the task could even run at 400KHz, what could be causing that behavior? 

Thanks in advance for the help