We do not know the exact steps to replicate the glitch, but basically when closing the bank and opening another tab (either inventory or crafting) it will sometimes drop whatever you had in your bank onto the ground. We do think though, it has something to do with the plugin thinking we meant to drop the items in the bank, onto the ground. Earlier, someone in our server accidentally duped and created two sashes onto the ground, but, it also emptied what was in his bank. Do consider that the video, "Rust ("/bank") glitch" happened every single time except this one particular time.