PWM Polarity Inverting Circuit for TEC module using DRV8432 in parallel full bridge mode

Hello,

I am working on a PWM polarity inverting circuit for TEC module with 24V power supply, 1 TEC requires 12A driving current in total. so I am using DRV8432 in Parallel full bridge mode with my design and PWM operatable. I am trying to swap the polarity for heating and cooling. I am just sending a digital input for direction control to a microcontroller board. uC generates the PWM based upon the direction.

If it is in logic high - TEC heating

PWMA - 95% of dutycycle with 40Khz frequency
PWMB - 1% of duty cycle with negative logic

If it is in logic low - TEC cooling

PWMB - 95% of dutycycle
PWMA - 1% of duty cycle with negative logic

the board is working fine if i swap the direction  pin slowly.

If i increase the rate of changing the direction. It triggers the *FAULT and *OTW.  It is showing the output 0.66V.
Any shoot through is happening or something else. Ringing is also there on output at inductors.
Using the Boot strap capacitors  of value 200nF.

Any suggestions would be appreciated!