Why can't the table automatically absorb and alignment the edges of the frame?

Why can't the table automatically absorb and alignment the edges of the frame?

  1. Always release the mouse after alignment, the table is offset, and sometimes the lower right corner of the table is aligned with the lower right corner of the frame is normal adsorption alignment;
  2. However, the lower left corner of the table alignment frame at the bottom of the problem, can not automatically adsorption alignment, will pop up and produce offset.

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