DRV2605L: LRA can't stop when turn from RTP to standby mode

Hi team,

Customer is using DRV2605L in their project, and they use it work in RTP mode. When they try to stop it from RTP mode, they just write 0x40 to register 0x01, which means turn DRV2605L to standby mode, and internal trigger mode. However they find, sometimes, the LRA couldn't stop when doing the above work. Could you help check if changing from RTP mode directly to standby, and internal trigger would be fine?

The following is customer code:

void drv2605RTPVibIntensity(uint8_t level)
{
DRV2406L_Stop();
DRV2605_Set(DRV260x_RTPMODE,level);
}

void DRV2406L_Stop(void)
{
         drv2605_twi_write(DRV260X_REG_MODE, 0x40);
}

 Thanks,

Will