As a former video game QA tester, I wanted to bring to King's QA department's attention a gameplay bug I discovered that probably slipped by their attention. It is rare, but can be replicated.
On a level's initial load, if three color bombs line up side-by-side they will disappear like any other triple-set items of the same color without detonating. The color bombs will just count as a regular colored piece minimum point tally and do not take out any other colored pieces on the level.
After some trial-and-error with using boost items, I was able to replicate. The bug does not seem to occur once play begins, the color bombs will detonate as programmed, but if three load on the initial screen in a line before the player can begin play the bombs will disappear without detonation.
I first discovered this bug on level 1866, but was able to replicate on an earlier level.