Items in dropdown list are transparent on ios while android aren't

[smallhand]

I already
set zIndex styles, and it works on Android app while ios doesn't
Here is my code snippet

<View style={{zIndex: 10000 }}>
      <DropDownPicker 
            open={grpOpen}
            value={grp_no}
            items={grpPicker}
            defaultValue={grp_no}
            setOpen={setGrpOpen}
            setValue={setGrp}
            setItems={setGrpPicker}
      />
</View>

[SurajMohanty02]

same issue

[gitnlsn]

Same issue here.