Well i'm running version 0.0.9c 64 bit but when i prebuild a lets say a one handed sword and restart the game i can't sell it anymore. I have tried to prebuild something and than selling it without restarting the game and that works so yeah. I hope you fix it, it would make me very happy. :)
My pc is running a intel i5 6500, a asus r9 290 dc2 oc 4g d5, and 16 gb of ram.
It's a known persisting glitch from the previous version, there's a few bugs from previous build that haven't been solved yet, and some that were solved, or thought to be, and have managed to weasel back in other ways
edit
As the previous version had it suggested as well - I recommend organizing your shop to house tool-heads/parts and grips ready to be finished rather than pre-assembled so that you do not run into this issue of item's "breaking"
Do not. However.
Construct a Wood Shield part and keep it on hand.
On Reload - Shields not only break like items
but the wood part tends to become solid, and once that happens, it is useless - May not always happen, but won't ever happen if you wait to do the wood part last