I need help please recycling my ship

[Dr.Dark]

You need EGS Recycle level 5 to get alien cores back.
Try reading here

EGS Recycle Structures

Much of the galaxy remembers when deconstructing ships, bases and pretty much everything else was enough to give you space tremors for life. Thanks to the geniuses at EGS, we now have the ability to recycle your vessels with the power of Science! Depending on your upgrade level for EGS Recycle, you will be able to recycle vessels and get up to 90% of your materials (in form of blocks and devices) back, and perform recycles at a number of locations, and possibly anywhere, if your EGS Recycle lev…