Your data is just fine
Leaf temperature for the soil moisture station, assumes that you put a leaf temperature probe on soil temperature 1 rather than bury it as we do. So if you are using only 2 sensors, then reconnect them to sensors 3 and 4. The leaf temperature will disappear. If you wish, you can buy an additional soil temperature probe, run the lead into the bushes and then you will get the leaf temperature.
Yeah, I agree it makes no sense as to why it works that way. I have all 4 sensors connected and I get exactly what you are seeing.
Leaf wetness 4 is kind of silly as the transmitter only has 2 plugs. You might check to see if within the range of the station anyone else has a soil station and then change your channel. Since you don't have a sensor, I'd ignore it. In fact it could be a software issue. What does Weatherlink show for leaf 4. ?
The other pain in the tush is the pinch connectors for the lead wires, you have to becareful not to break the plastic levers and they go quickly. I broke one and fortunately it was on sensor 1, so I kind of fixed it.