Armor Stand Item Visual Glitch

http://www.mediafire.com/file/wfn8sog302i6dk2/Minecraft_2_13_2019_10_47_41_PM.mp4/file

There is a picture and a video download link. 

I have armor stands that are named and all hold a skull on their head and armor on their body and a weapon/ item (in this case, swords and tnt) in their hand. There are 4 armor stands. 1 has a gold sword, 1 has a stone sword, and 2 have tnt. When I type in the command " /effect @e[type=armor_stand] invisibility 9999 1 false " Then this visual glitch happens where the items follow you around, and it is a super cool glitch actually. This does NOT happen if you put "true" at the end of the command. Also, on the armor stands, the armor turns invisible, but the skull does not. Just odd to me. 

Good luck solving this issue. 
Sincerely, 
            ~ BootheBoys - DirtCorp