Before I enter a ticket, can anyone tell me if they know of an existing ticket for this behavior? https://trycf.com/gist/294b5dff4e1eadc707ac7551efe45845/acf2021?theme=monokai works fine in Lucee (No error, returns true as expected) but ACF blows up The closest I found were these ticket https://tracker.adobe.com/#/view/CF-4098395 https://tracker.adobe.com/#/view/CF-4208493 but they seem to deal with structs, not arrays.

I do not know of a better ticket, but agree the situation ought to be dealt with. Or indeed, ought to have been dealt with back when they fixed the struct equiv of same 😕

Just closing this loop https://tracker.adobe.com/#/view/CF-4218042