Depleting an accumulator shows lightning, after being depleted it's still flashing but then putting a new accumulator next to it the new one doesn't flash.
I think two entities should show up as the same if they have the same properties.
I will try to get a better image and to reproduce the bug, it's extremely minor, but I just wanted you to know about it

--image information
The under right accumulator is the one placed after hte others have been depleted