I Crafted 4 Framed Drawers And Found That Them Cannot Be Stacked So Decided To Check NBTs And Found That When The Game Is Crafted The Space That Saves The Drawer Material Info, Saves Also The Quantity Of Material Stored And That Value Is Defined Not By The Material Used To Craft It (1 Block) But The Amount Of Material In The Crafting Grid When The Drawer Was Crafted.

Thank you for the very helpful bug report.