Mmmm... work backwards. Let's try Rudra with boss stuff off. And 2130 off (think this creates phantom line ..... somehow)rudra-debug3 = Some interesting findings!
All mantras affected? Heal, Aqua, Bolt, Wave, Fire?
Just like you said, boss death effects are completely gone.
But the phantom line is also gone! I never saw it, not even once!
Now for the mantras. This is where it gets interesting.
I should have tested all of the mantras (from the other storylines) from the start, that's my mistake.
It appears that ONLY
the single-target fireball Mantra (not sure what it's called since it's in Japanese) is effected by this layering-over-the-battle-text issue!NONE
of the other Mantras exhibited this issue!
It would appear that this EXACT SAME
effect is being used during the cutscene I took pictures of earlier!
I think his name is Sion in English, very early into gameplay, just have to walk into the tower.Picture 1 (Red Layer)Picture 2 (White Layer)
It would also appear that boss-death-effects and this layering-over-battle-text issue are NOT
related, or least that's the way it would appear to me.EDIT:
Alright, I think I know exactly what is happening!
For every Mantra, the battle-effects are displaying UNDER
the battle text box (so you don't see them).
For some reason, this is NOT
occurring with the single-target Fireball, as well as that cutscene.
Every other Mantra spell (look closely at bottom, it appears to be same as fireball but under the text box so can't see all of it, only a faint line):https://i.imgur.com/VGtpHYK.jpg