STM32CubeMX generated code inconsistency when changing I2C pins to another GPIO Port

Dear All,

I have a nucleo-l010rb board and I am generating a code to read 24C512 EEPROM on I2C.

I have tried CubeMX Firmware Version 1.12.1 and 1.11.3.

When I generate the code for the IDE default PA9 and PA10 following is the HAL_I2C_MspInit function generated in stm32l0xx_hal_msp.c file.

void HAL_I2C_MspInit(I2C_HandleTypeDef* hi2c)
{
 GPIO_InitTypeDef GPIO_InitStruct = {0};
 if(hi2c->Instance==I2C1)
 {
 /* USER CODE BEGIN I2C1_MspInit 0 */
 
 /* USER CODE END I2C1_MspInit 0 */
 
 __HAL_RCC_GPIOA_CLK_ENABLE();
 /**I2C1 GPIO Configuration
 PA9 ------> I2C1_SCL
 PA10 ------> I2C1_SDA
 */
 GPIO_InitStruct.Pin = GPIO_PIN_9|GPIO_PIN_10;
 GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
 GPIO_InitStruct.Pull = GPIO_NOPULL;
 GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
 GPIO_InitStruct.Alternate = GPIO_AF6_I2C1;
 HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
 
 /* Peripheral clock enable */
 __HAL_RCC_I2C1_CLK_ENABLE();
 /* USER CODE BEGIN I2C1_MspInit 1 */
 
 /* USER CODE END I2C1_MspInit 1 */
 }
 
}

Now when I want to change from PA9/PA10 to PB8/PB9 for the same I2C1 following is the HAL_I2C_MspInit function generated in stm32l0xx_hal_msp.c file.

void HAL_I2C_MspInit(I2C_HandleTypeDef* hi2c)
{
 GPIO_InitTypeDef GPIO_InitStruct = {0};
 if(hi2c->Instance==I2C1)
 {
 /* USER CODE BEGIN I2C1_MspInit 0 */
 
 /* USER CODE END I2C1_MspInit 0 */
 
 __HAL_RCC_GPIOB_CLK_ENABLE();
 /**I2C1 GPIO Configuration
 PB8 ------> I2C1_SCL
 */
 HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
 
 /* Peripheral clock enable */
 __HAL_RCC_I2C1_CLK_ENABLE();
 /* USER CODE BEGIN I2C1_MspInit 1 */
 
 /* USER CODE END I2C1_MspInit 1 */
 }
 
}

I updated this code manually for PB8/PB9 on the lines of PA9/PA10 and only then I was able to get I2C working.

There is another set of I2C pins as well on PB6/PB7 and for those pins as well the code generated is as generated for PB8/PB9.

I want to know why is there such a discrepancy when I am changing pins for the same peripheral.

This is happening in the latest and the previous version of the Cube repository.

Is this normal? or what am I missing over here.

This wasted my 3-4 days and much more for my junior engineers.

Can anyone from ST enlighten us on this?

Regards