For anyone frustrated about losing things in the floor, I've found a couple of techniques to help with this.
1: I'd open the crate on top of the forge, a counter or the workbench
2: I'd open the crate outside where it's delivered and carry things in one at a time.
If you do have things stuck in the floor, spam right click on it until it pops back out. I've had this work for me 100% of the time.