Bundles Disappear

I was playing around with the new features (love the new changes, btw) when I noticed my bundle disappeared. I was placing items in it, and I placed a few flowers in it (I think the last one I put in was a sunflower), and then, without putting the bundle back in any inventory slot, I closed my inventory. I thought "Oh shoot, not I'm gonna throw my bundle on the ground" but nope, no bundle to be found. Not on the ground, nor in my inventory. It was like the bundle, and all the items inside, just disappeared.