I had some leather bundles in the first 10 slots of a cart. I equipped the cart and when I opened it ...they were no longer there. I had two carts right next to each other so thought maybe I'd been mistaken about which cart had the bundles. A short while later I did proceed to use the first cart to move some logs, thus placing something in those slots where I believe the bundles had been. I moved the logs and unloaded them, no troubles. When I looked in my other cart however, no bundles there either. 10 bundles of leather vanished somehow.

Another tribe mate also had some things 'disappear' from his cart after equipping it; containers were there then after he equipped it they were gone. However he was able to re-acquire his items. I told him to unequip and look again right away and thankfully his items reappeared.

Only thing I can think of is because I placed logs in the slots where my bundles had been, I've lost them for good somehow. Not sure whether it's an actual bug or just a freak occurrence?