16 weeks and only one ear up
We have a 16 week old registered WGSL that we purchased at 8 weeks old and only one ear is up. The one ear that's up has been up for 2-3 weeks but the only we have only seen the other one up a couple times and that was for a minute or less. We spoke to vet and she said it will likely be up as there is no damage seen but she will glue it at 20 weeks if it's still down.
Both parents, grand parents, great grand parents, etc... have strong ears so I know it's not genetic. He has plenty to chew on and we are giving him cottage cheese and premium food. Any thoughts?