LP-CC2652RB: Why does my configured timer not start?

I wanted to write a wrapper over the timer functionality provided by TI to include as part of a class. Something isn't working even though i seemed to have followed the configuration provided in the timerled example. Below i have attached my code running on the empty TIRTOS provided example:

Timer.h

#ifndef USER_TIMER_H_
#define USER_TIMER_H_


#include <ti/drivers/Timer.h>
#include "User/defs.h"
#include "Debug/syscfg/ti_drivers_config.h"

class Timer
{
public:
    Timer(uint_least8_t timerIndex);
    virtual ~Timer();

    Timer_Handle* getHandle();
    void updateTimerParams(Timer_Params* newParams);
    void updateTimerMode(Timer_Mode newMode);
    void updateTimerPeriodUnit(Timer_PeriodUnits newPeriodUnit);
    void updateTimerPeriod(uint32_t newPeriod);
    void updateTimerCallback(Timer_CallBackFxn newCallback);

    EPDStatus timerStart();
    void timerStop();
    bool isCounting();

private:
    Timer_Handle handle;
    Timer_Params timerParams;
    Timer_PeriodUnits period;
    Timer_Mode timerMode;
    Timer_CallBackFxn callback;
    uint_least8_t timerIndex;
    bool isRunning;

    void initialTimerSetup();

protected:

};

#endif /* USER_TIMER_H_ */

Timer.cpp

#include <Timer.h>

Timer::Timer(uint_least8_t timerIndex) :
        timerIndex(timerIndex)
{
    // TODO Auto-generated constructor stub
    initialTimerSetup();
}

Timer::~Timer()
{
    // TODO Auto-generated destructor stub
    timerStop();
}

void Timer::initialTimerSetup()
{
    Timer_init();
    Timer_Params_init(&timerParams);
}

Timer_Handle* Timer::getHandle()
{
    return &this->handle;
}

void Timer::updateTimerParams(Timer_Params *newParams)
{
    if (nullptr == newParams)
    {
        return;
    }

    this->timerParams.periodUnits = newParams->periodUnits;
    this->timerParams.period = newParams->period;
    this->timerParams.timerMode = newParams->timerMode;
    this->timerParams.timerCallback = newParams->timerCallback;
}

void Timer::updateTimerCallback(Timer_CallBackFxn newCallback)
{
    this->timerParams.timerCallback = newCallback;
}

void Timer::updateTimerMode(Timer_Mode newMode)
{
    this->timerParams.timerMode = newMode;
}

void Timer::updateTimerPeriodUnit(Timer_PeriodUnits newPeriodUnit)
{
    this->timerParams.periodUnits = newPeriodUnit;
}

void Timer::updateTimerPeriod(uint32_t newPeriod)
{
    if (newPeriod <= 0)
    {
        return;
    }

    this->timerParams.period = newPeriod;
}

EPDStatus Timer::timerStart()
{
    this->handle = Timer_open(timerIndex, &timerParams);

    if (NULL == this->handle)
    {
        return EPDStatus::EPD_FAILURE;
    }

    auto res = Timer_start(handle);

    if (Timer_STATUS_SUCCESS == res)
    {
        isRunning = true;
    }

    return static_cast<EPDStatus>(res);
}

void Timer::timerStop()
{
    Timer_stop(handle);

    isRunning = false;
}

bool Timer::isCounting()
{
    return Timer_getCount(handle) > 0;
}

Timer initialization and setup. I call this within mainThread of empty.c that gets made as a task.

void timerTest(void);
void dummyFunc(Timer_Handle handle, int_fast16_t status);

void timerTest(void)
{
    GPIO_init();
    static Timer tim(CONFIG_TIMER_0);

    Timer_Params timerParams;
    timerParams.periodUnits = Timer_PERIOD_US;
    timerParams.period = 10 * EPD_S;
    timerParams.timerMode = Timer_CONTINUOUS_CALLBACK;
    timerParams.timerCallback = dummyFunc;

    tim.updateTimerParams(&timerParams);

    EPDStatus res = tim.timerStart();
}

void dummyFunc(Timer_Handle handle, int_fast16_t status)
{
    ++count;
}

defs.h only contains some simple defines:

#include <cstdint>

#define EPD_MAX_BUFFER 2888
#define EPD_SEND_NO_DATA 0
#define EPD_MS 1000
#define EPD_S 1000000
#define EPD_PIN_HIGH 1
#define EPD_PIN_LOW 0

typedef struct pinType_t
{
    uint_least8_t pin;
} pinType;

typedef enum
{
    EPD_SUCCESS = 0, EPD_FAILURE = -1
} EPDStatus;

Following this code with the debugger, i can see that updateTimerParams works and the timer parameters structure is correctly setup with my desired values. However, Timer_open(timerIndex, &timerParams); returns NULL and thus the timer cannot be started. The aforementioned timerled example works when tested, so it must be something wrong with my initialization steps. Moving initialTimerSetup to timerStart does not work either, so i'm guessing there's something wrong when opening the timer.

Any help would be greatly appreciated.