Didn’t see this in the first two pages; apologies if it has been reported.
At the beginning of your turn, if you have a number of countdown tiles expiring (e.g. Recharge or Mischief) and one of the countdowns causes a cascade that makes a blue match, FalCap is (correctly) counting another tile down to 0. However, at that point, the tile with a 0 stays on the board while all other countdowns process. Only after making a match or using a power does the tile disappear and the benefits occur.
I have not matched away a stuck 0 tile to see if it would vanish without giving you the benefits.