clicked ok to make a move but computer made a different one

Sort:
lemmingstyle

This has a happened  4-5 time now 

I use the analysis mode to experiment t with  moves then when i wan to -make a specific move i exit and go make to the original screen  _ make a move and click ok but when I refresh the computer has made an different move-one that I have been experimenting with in analysis mode 

anyone else experienced this