Health and HEV chargers don't animate when empty

I started playing again with the Steam release and could have sworn the Health charger had a little shutter that went down when empty. The HEV also used to close up when empty but that doesn’t happen either.
The other animations appear to work.

Is this a known issue?
I’m on Steam and no mods that would affect that.

Thanks

I have not seen these shutters either and I also remember them from the mod.

I do not know if they were removed or whether this is a bug. I did notice one first aid charger that was already empty with the shutters down.

Founded in 2004, Leakfree.org became one of the first online communities dedicated to Valve’s Source engine development. It is more famously known for the formation of Black Mesa: Source under the 'Leakfree Modification Team' handle in September 2004.