From the following attachment you can find previous blocks and blocks are very different now, which also contributed to the layout we miscalculated the time Lord,
You can see from the following annex the original block and the block is now very different, which is caused by the layout of the main reason we misjudged the time,
From the following attachments, you can find that the original block and the current block is very different, which is the main reason for us to estimate the timing of the layout,