In order to be able to run up and just click your tombstone to get all your items back instantly, you have to be 100% "empty"... no inventory whatsoever, otherwise you have to stop and open the tombstone and manually grab your items one at a time.

If you were wearing the belt (that allows you to carry more weight) when you died, then that will also affect the "quick-grab" ability and you will have to stop and open the tombstone and take your things back one at a time, and unfortunately, many times this means you are likely going to get attacked by anything close by, especially if you didn't let some time pass (sleep) to allow the critters to (hopefully) disperse and wander away from your loot....

Your loot doesn't "expire" it will stay there indefinitely until you go back and get it, so usually a good idea to sleep to advance time, then get your rested bonus and eat your best foods, then do a completely naked deathrun... bring one frost resist potion and drink it when you get to the snow to give you the frost protection but also have empty inventory when you arrive, click and grab your loot and keep on running until you are safe.

Of course using the console commands is "cheating" but it doesn't affect anyone but yourself.