ADC Trigger from Timer,DMA transmit ,and then Always Overrun Error, buffer address @0x30000000.Data can not be transferred to buffer correctly,ADC1 register DR is 0x801 while buffer is 0x01.

I have stm32g441 Chip. ADC1 used in external trigger  mode and triggered by Time1Channel4 (OC4REF),But when T1Ch1- T1Ch3 worked in Center-aligned mode,T1CH4 has not Worked,ADC1 DMA interrupt occured,and occured in cycle.