LW1 needs to work harder on the training (I suspect LW1 is not consistent about it), walk the dog in places where they will not meet other dogs, and understand that it can take more than a year to break an established habit like this in an adult dog. And they need to understand that the behavior is a big problem, that they need to be publicly and firmly correcting it when they do encounter another dog (which, if they see the other dog? LW and their dog cross the street, take the corner, do not push the encounter) in order to train the dog out of this.

This is one of the hardest habits to break and I hope LW has a good professional trainer and isn't just yelling at the dog. A muzzle is helpful, too, at least for the dog.