Sometimes the data is not fetched from few of the pzems

[frozenmafia]

Cannot consistently read the values

To Reproduce Steps to reproduce the behavior:

1. Connect 5 pzem on esp32 on rx tx (16 17)
2. change the address of all pzems ( I did 50,51,52,53,54)
3. Now us pzem multi library to fetch data , I am also dispalying the same on lcd (16x2)
4. Some times I see values are not read ( I fetch the data on the interval of 2 sec)

Expected behavior There shall be no miss in data

Additional context Is this normal behaviour, as the values are missed 1 out of 6 times