Why does eBay override my shipping weights?

[sound_ray]

eBay in safari is imposing shipping recommendations and not allowing me to enter weight and dimensions 

[wastingtime101]

Can you provide more information @sound_ray ?

For example, are you-

Creating a new listing from scratch?

Using sell similar from one of your own listings?

Using sell one like this from another seller's listing?

Using the quick listing tool or the business listing tool?