Packaging re-cooks everytime the whole project


Everytime an run File Panel → Package Project → Windows 64 Bit the Engine re-cooks everytime the whole project which is 36 GB big. It takes about 3 - 4 hours to cook everytime. In the log it says “LogCook: Display: Cooked content cleared for platform WindowsNoEditor” and " LogCook: Display: Sandbox cleanup took 23.385 seconds for platforms WindowsNoEditor iterative false". I have already enabled "iterative cooking in the cooker settings. But its still re-cooking the whole everytime.
This is so confusing and frustrating! What i doing wrong?

Same issue, anyone?