Solved:
Issue was existing icons over units would disappear when you loaded a saved game.

Found a way to restore them when the save file is loaded.

eg. visual auto repair spanner icon was disappearing over your units when you saved and reload. They always kept their tags, but the visual icons have to be reloaded on spawn via the interaction files.

updated files with follow icon for vehicles as in the video in the description

Currently seems to be an issue with compatibility with open Beta version. I haven't been using the open Beta during development. I will look into this.

Works with Current non Beta version.