Hi. Today, after a couple of months, I come back to a HY-8-7.5 model used whithout any problems before, but when I tried to change the elevations in the tailwater rating curve, the program changed the values entered by me previously. I didn´t understand what was happening. I tried to do a new model from zero and I get the same problem. I uninstalled and installed the program three times and the problem happen again.
I´m using Windows 10 but I tried too in a laptop with Windows 7.
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