I was playing a wave node today and when I matched away the CD tile the match damage itself killed the last remaining goon of that wave. My turn ended and the next wave came in did their thing. The 2 attack tiles that should have been created as a result of matching away her CD tile did not appear.
On my next turn a CD tile was created and when I matched it away the correct tiles were produced.
It’s not a game breaker by any means but could be annoying depending on the situation.