Dragonflies can't walk?

Hello, I'm new to answers. I'm 21 and I live in the southern area of Colorado. I was outside having a cigarretteand I noticed a dragonfly in my fresh cut lawn. It was just a few moments ago and it is 4 in the morning. I have always been interested in dragonflies and other insects and I have read and been told that dragonflies cannot walk. Now, maybe this wasn't a dragonfly but some other type of fly species but it was attached to a blade of grass flapping it's wings fast and then it landed on my driveway and proceeded to WALK maybe 6 inches or more. Is it cold hard fact that they do not walk? Are there exceptions? Or was this a different insect altogether? All answers welcome, educated answers appreciated. :) thx.