Reorder Programs problem

I running with Hardware 3.1 (AC) and Firmware 2.1.9 (2). I was looking to install a switch to allow some limited “manual” control and see that such a feature already exists – GREAT – using one of the 2 sensor switches. And when using Sn2 input for the switch, that will initiate Program 2. All good. — When I went into my programs to reorder them, whenever I selected the “up arrow” to move a program (supposedly) up in the program order, it merely over-wrote the program above. So now I have several duplicate programs. (Not Great.) — No trouble in re-entering the programs. However, was there “operator error” when I tried to reorder the programs, or is there a bug in the software? I was not selecting “copy” I was clearly selecting the round “up arrow”. — Help / Advice appreciated.