Please add some debug info to your devices. For those pins where the data is missing. Probably your devices don’t send the data to those pins or devices send not numbers.
I think you are right!
I notice that the datastreams not working are these <10°C, so only with one digit … surely the first empty digit is bad formated.
These settings work already from months, but…
Winter is coming!
I should have find it by myself.
Big thanks 
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Ok it’s working again!
Next step library arduino v5!