I've noticed a few times that the "Any other selection's" and "All other selection's " drop-down option in trigger conditions do not work as expected.
As a simple example if in an initial condition I select any horse that is 3 years old, then in the second condition I check whether "Any other selection's age" is 4 years old or more, the second condition just runs through checking the age of the horse chosen in the first condition a number of times, instead of checking the ages of other horses so the result of the second condition always equates to 3 (the age of the selected horse) rather than other horses' ages, threfore the trigger is never actioned.
A similar thing seems to be happening with "All other selection's"
Example trigger and output are shown in the images.