Maisie has been like this sometimes, especially if one of my boys walks her, very frustrating for them!She is ok if you have her in the car and you drive her to a park etc, she enjoys a walk. It's when she is in the house and she see's you with the lead, she runs off into her basket and cracks on she is tired!! As soon as you leave the house she drags her bottom or turns the opposite way And then finally as we get to a certain distance from our house she will give up her fight and start to walk
Its like they prefer to be driven to a nice walk than have to walk along the pavement to get there - sometimes a little firmness helps so they know that you control the walk, not them ......but she is only a baby, she should outgrow it.