I have a friend in Germany using one of my flows. Some of the data is not showing up on his dashboard. When he sent me a screen shot of the debug is showing the property value for SWR as "1,2" instead of "1.2". See below:
I did some research and it does seem that in Germany the decimal separator is a comma and not a dot. This would explain the issue. Rather than have the person tweak his locale settings I just modified the function to replace the "," with ".".