Hmm, Interesting you've never had an issue. I just checked UESP's page for conjuration and found this.
If you cast any of the damaging Cloak spells while you have a conjured creature active, the creature will be dismissed. If you have the Twin Souls perk and two thralls or summoned creatures, then both summons will be dismissed. With the Elemental Potency perk all Elemental summons (Fire, Frost, Shock) are not affected by this issue (Dremora Lord is affected even with the perk).
I must have forgotten about potent atronachs not being affected. Perhaps it's the Elemental Potency perk? Or maybe you just don't notice youre conjured creatures disappearing?
Hmm, Interesting you've never had an issue. I just checked UESP's page for conjuration and found this.
If you cast any of the damaging Cloak spells while you have a conjured creature active, the creature will be dismissed. If you have the Twin Souls perk and two thralls or summoned creatures, then both summons will be dismissed. With the Elemental Potency perk all Elemental summons (Fire, Frost, Shock) are not affected by this issue (Dremora Lord is affected even with the perk).
I must have forgotten about potent atronachs not being affected. Perhaps it's the Elemental Potency perk? Or maybe you just don't notice youre conjured creatures disappearing?