CC2642R: GPIO Interrupt Not Triggered When Performing Float Operations in Task (ADS1298 DRDY)

Tool/software:

I am working on a project using the CC2642R1 microcontroller interfaced with an ADS1298 ECG front-end via SPI. The DRDY (Data Ready) pin from the ADS1298 is connected to a GPIO pin on the CC2642R1, configured to trigger an interrupt on the rising edge.

The setup works as expected:

- GPIO interrupt is properly triggered.

- ISR sets a flag.

- A periodic task (1 ms interval) reads raw data from ADS1298 and processes it.

Issue:

When I include the following floating-point baseline removal code inside my periodic task, the GPIO interrupt stops triggering entirely:
baseLine[i] = ALPHA * baseLine[i] + (1.0f - ALPHA) * data[i];
data[i] -= baseLine[i];

If I comment out these lines, everything works normally again — ISR is triggered, and data is processed.
Meanwhile, probing the DRDY pin confirms it is toggling as expected, so the ADS1298 is working and generating rising edges.

I am using TI-RTOS, and SDK: simplelink_cc13xx_cc26xx_sdk_6_40_00_13.