When "Save" & "Load" have the same Y-offset the Structure Block GUI doesn't exit when executing "Load" command.

TEST:  1.Save with Y-offset =-1 (Default)

            2.Load with Y-offset (-4,-3,-2) the GUI will exit.

            3.Load with Y-offset(-1,0,1,2) the GUI remains.

TEST:  1.Save with Y-offset = 0

            2.Load with Y-offset (-3,-2,-1) the GUI will exit.

            3.Load with Y-offset(0,1,2,3) the GUI remains.

UPDATE:  

structure_block includes it self in "Saved Structure", which causes this bug.

workaround: 

when saving the structure, change XYZ offset in order to exclude the structure_block from the Saved Area.