Ghost block?

Me again :))) I need some more help, I was doing my command block testing playground, and I issued a lot of command blocks to set functions, I lacked of space so I wanted to move the blocks without redoing it by hand, so I used the command of replace to move all the blocks all at once, it’s called WorldEdit.

WorldEdit moved the blocks but now I have a problem, apparently, the command blocks are still on the original position, but apparently invisible and untouchable, I already tried everything to get them off, I even replaced the surface, put other blocks on that place, reload the chunks, close the game and so on but nothing seems to be working.

What can I do and why do you think this happened? I would like to avoid it in future and hopefully I can remove those ghost blocks without map reset.