Glad you like it! :) Can you look if there's a file "pattern_XX.txt" in "C:\Users\[Name]\AppData\Roaming\Chip_Hop\Patterns"? XX being the the number of the pattern that shows in the game display when you press the save button. The file itself should just have a bunch of numbers in it.
If the file isn't there, it's probably a saving issue. Maybe your computer is blocking access to create the files there. If it is there, then it doesn't load for some reason, which might also be related to access restrictions.