The information streams get populated upon a unit of measure mis-match. What I imagine happened in this case was that the measure unit was first set to measure mass enthalpyF, then the information stream was connected, and then the measure unit was reconfigured to measure mass enthalpy instead of mass enthalpyF. Upon exiting the editing of the unit, there was no reason for the information stream to re-populate as the only parameter it has still matches unit of measure with the only piece of data it was connected to.
As a background, the information stream content is determined the first time the stream is connected (cf
https://www.cocosimulator.org/index_hel ... treams.htm), as it may not necessarily match the name on both ends of the conection (as there is no way to assume that these names are equal).
To fix this for you case, disconnect the information stream (now it has no parameter on there) and then connect it again (now it has one J/kg data item on there, for which the name is taken from the first connection)