Pathfinder Enduring Elixirs + Chaos Inoculation + Eternal Youth + Alchemists Boon

Hey guys,

I don't know if I'm missing something here, my apologies.

I was playing a support sharing my flasks with my group last patch.
Back then I was able to pop my life flask at full energy shield to heal my allies.
Now I'm not able to use my life flask at full energy shield anymore.

Patch notes show no impact on the mechanic I was using. Did I miss something?
Only thing I can find is some bugfix to Eternal Youth that states it was 'not possible' at some point and that was fixed.

Please help me out!