This issue is Un-replicable even with those parameters applied unless I missed something. You said it happens with the demo. Can you recreate this in the demo and do a video clip on it?
Viewing post in Strange Problem After Update
when you say next turn do you mean next battler or when the turn order window resets?
The reserve turns take into account the number of times a battler can act. Eg: in the demo project, trying using willpower with Michelle. You'll notice that instead of acting twice, Michelle acts only once and applies the buff. For Reid, they'll need to wait an entire turn order cycle
I mean when the turn order window resets. But what I don't get is why the Sunbeam skill, which directly copies a pattern from the demo and doesn't have any reserve turns set, only works when facing downwards, and even less why you can't fix it. Should I just hand over the project itself for an investigation?