The Version 6.0.23.1859 patch released on Sept 13, 2019, fixes the following minor issues:
- plug flow channel element was not showing the last saved G value after loading a file
- conversion issue with variable ferrous input
- minor stoichiometry fixes, e.g. calcium release on decay of sulfur organisms and synthesis phosphorus use for anoxic growth on industrial COD #3
You can update using the automatic updater or by downloading the latest version here : BioWin Update