Hey @Keejo,
I am unsure as to why the interaction broke in the first place, but I found a workaround for you.
Instead of one click interaction on the parent fireCard
you can set two click interactions. One for the firecardBack
and one for firecardFront
https://cl.ly/3o3g0o2C0a3w/Screen%20Recording%202017-02-03%20at%2012.10%20PM.gif
Hope this helps