I have worked in HEC-RAS before, even in the version I am trying to use right now (5.0.6) but I have never encountered this issue. It seems I am unable to introduce decimal numbers in HEC-RAS, due to the fact that the program saves float numbers as integers. I have checked the Regional Settings in the system, I've changed the measure unit (just to check if that is the issue) but without success.
Also, this symbology error come up along with the aforementioned issue:
Has someone experienced this issue?
Later edit: I think I've found the solution. The issue what that, in the Regional Settings, the decimal separator was a comma and not a dot. Now it seems to work well.