From the Wizkids ruling:

“When In Doubt, Choose the ‘Weaker’ Option”

Sometimes there will be card text or interactions that could reasonably be interpreted in one or two ways. A random sample of players asked might get split down the middle on how it plays out. We’d encourage judges to rule that the weaker interpretation is the correct one. For example, if an effect might reroll a single character die, or every copy of that character die, but is unclear, a judge using this guidance would rule that only a single die is rerolled.”

While the rules are pretty clear here, a good habit when asking for a ruling from a judge is to simply ask about an interaction without the influence of context. This allows the judge to remain unbiased when determining which effect is weaker.