Falling Block

[MusicManSK]

Hi!
i have a code:

command /vv:
    permission: egg.use
    trigger:
        drawDot count 10, particle smoke, XYZ 0.3, 0.2, 0.3, center position under {egg.pos1}, visibleRange 8, pulseDelay 5, keepFor 1 seconds
        play sound "block.fire.extinguish" with volume 3 and pitch 1 at {egg.pos1}
        wait 0.3 seconds
   
        set {_loc1} to {egg.pos1}
        reduce y-location of {_loc1} by 2.48
   
        spawn an armor stand at {_loc1}
        set {_a} to last spawned armor stand
        set armor stand helmet of {_a} to gold block
        add "{CustomNameVisible:0,NoGravity:1,Small:0,Invisible:1,Invulnerable:1,NoBasePlate:1,DisabledSlots:2039583}" to nbt of {_a}
   
        spawn falling block of ender dragon egg at {_loc1}
        set {_f} to last spawned entity
        add "{Time:1b,DropItem:0}" to nbt of {_f}
   
        make {_f} ride {_a}
   
        wait 5 ticks
        set block under {egg.pos1} to air
   
        set {_lock} to 0
   
        loop 20 times:
            add 0.125 to x-location of {_loc1}
       
            wait 0.05 seconds
   
        wait 2.5 seconds
   
        wait 1 seconds

        delete last spawned armor stand
        delete last spawned entity

        set block under {egg.pos1} to ender dragon egg

If i am do "/vv" ender dragon egg disappears, armor stand with gold block on head spawns, falling ender dragon egg rides armor stand but when armor stand start moving falling block will be destroyed.. but im need it to stay riding armor stand..
please help mee D:
[doublepost=1515447808,1514667340][/doublepost]nobody? I am need help!
[doublepost=1515448018][/doublepost]or... im just need to move with falling block... like ... idk... block hunt/hide and seek..