Yesterday (14.12.2020) several members of our alliance “were quite sure” that there were random errors in raid or tournament tile attacks. Probably especially combo cascades, but cannot be sure about that. But anyway, something like this: I had three green heroes in my team, and no red ones. At one point of the battle several green tiles hit an opponent, causing basically zero damage. Later on (while the opponent still had a some non trivial amount of health left) some red tiles hit the opponent, dropping him dead.
There were no “color changing” heroes / specials involved.
Each of us initially thought that we just “saw wrong” and almost forgot about it, but when the issue came up and several of us said the same thing I cannot be sure anymore. Anyone else?