Super Glitchy Armour Stands

When I joined my world, I took a look at my armour stands, when I noticed they where changing skins/Textures. I checked my settings to make sure I didn't have any texture packs. They changed several times in different ways. For example, when I moved closer to some they changed. When I walked away they also changed. (I tried to include photos, but it doesn't work.) I hope this issue will be fixed.