There’s some info here from Rasterisko that might be helpful about NOT using For each instance together with the trigger once condition.
Also this
If you use the condition “Trigger once” with “Repeat for each instance” the event will be true just only one time. So, if it happens in one instance, it won’t happen in any instances anymore! You need change your events of “Repeat for each instance” removing “trigger once” and putting another condition that makes it true only once.
