Hi,
I am facing a similar issue. I prepared a CSV file for my meteorological input, but when running the forcing on the GUI, my SPHY preprocessor stops working and gets stuck at a certain percentage (not the same every time). No file is created, and the process doesn't end. I get a "QGIS is not responding" error. I have run it on 30 years, 20 years and 10 years of time steps and only 10 years of time step files are created.
If anyone has found a reason or a solution, it would be helpful if you could share it.