Spells can't damage outside light range?

[Delmuir]

So I haven't played an archmage in a while and so I tried a few and...

It appears that Aether Beam and Aether Breach, if cast in areas within their casting range and range of sight but which are still blacked out due to light range, apparently just disappear.

I didn't really notice it but it happened more than a few times in a cleared dungeon (maze) with only one enemy.

This is definitely new, right?