Write Clone 0 0 0 0 0 0 65 12 3 in the command block and repeat it unconditionally Always execute Tick is 0 In this state, you cannot open the clone destination chest. In other words, even if it opens, it closes immediately. It will be business as usual until 1.20.80. Until 1.20.80, running the clone command did not close the chest.
1.20.80 There is no evidence that it was not closed. And there is no image evidence that it will close. This is because when you click on it (trying to open it) it closes instantly, so you can't take a screenshot.