Why "superchat" widget display value is very difference with "labeled value" widget

Need Help With My Project
16

Hi，knoih
I think you didn’t read my previous posts，pls see this picture and code
1
First,In my app, terminal log said that all data from ds1820 are right(red box), only "labeled value"widget is wrong(yellow box).
Second, in my code(as bellow),at same time ,I put same data(now_temp) to V11 and terminal. But terminal is right and widget is wrong.
So, my code has no problem I think.

//read ds1820
float pre_temp = 0;
void Read_Temp()
{
  float now_temp = DS18B20.getTempC(insideThermometer);
  Blynk.virtualWrite(V11, now_temp);
  terminal.print("t=");
  terminal.println(now_temp);
  terminal.flush();
.....
}