Essential Graphics: Swapped comp not updating essential properties

I have a project with an essential graphics comp to control colour on various comps in the project (named "!Colour_Control"). I have imported a transition comp ("Transition-Window_to_Wipe"), which also has embedded within it a "!Colour_Control" comp. I swap out the comps so there's only one "!Colour_Control" comp in the whole project, but its not updating the colours. (i.e. in the example below, the pink in the imported comp is not changing to yellow of the project comp, even when I swap the comps and delete the imported one).

The "Colour-control" on the timeline above should be the project's "!Colour_Control" comp and display Color3 as yellow, but still displays the pink from its imported version.

However, if I double click into the colour-control comp on the timeline, it is the project's !Colour_Control comp. 

Its not a major issue, as I can just change the colours manually and it seems to relink to the project's Colour comp. But it does seem to be a glitch and it undoes some of the time saving elements that essential graphics provides.

Is there some other way of unifying imported comps with essential graphics elements?