Unanswered Prayers not triggering traits/gem properties multiple times

I’m not 100% sure if this is a bug or not, but it looks like the spell Unanswered Prayers isn’t triggering traits that activate on spells cast more than once, and the spell gem properties of the gem aren’t triggering multiple times either. I’ve tested this with Pyromaniac and Twist of Fate, as well as the Chance to Attack gem property (using a Stag Idol to assure a 100% chance).

Casting Unanswered Prayers causes one trait/property effect to fire just fine, but the extra three casts don’t seem to have any effect.

Platform: Android
Version: 1.3.19

The extra casts from Unanswered Prayers are considered automatic casts rather than manual casts, so that will prevent a lot of effects from working.