Whats the differnce from Development and Shipping in packaging

Hello , i got into a small problem when i pack the game:

  1. If i use Development the game pack well, character starts from initial position with no mesh attached to it, empty inventory etc.

  2. if i use Shipping, the character start from random position that was saved during many test i did, with meshes attached to him, item in inventory, etc, all seems to be random and i cannot see how can i fix it, i search about it but didnt find anything that could say why is happening.

https://docs.unrealengine.com/en-US/…ons/index.html

https://forums.unrealengine.com/community/general-discussion/65241-player-start-after-packaging

Doesnt help to much, since when i use shipping and i start game it starts from random point with random items on him like i sayd on point 2.