Here are some threads made regarding Flesh of Rememberance in Siptah:
Burning Offering - Flesh of Rememberance - BUG
Flesh of Remembrance not working as a burn offering
Cannot craft ‘Burn Offering - Flesh of Remembrance’ (Please ignore, reason provided)
I have some Flesh into freezer atm (Siptah Official EU server), got them from surge NPC’s - they have timer if put them into inventory and yes-they don’t work as offering on altars. So no solution for this yet.
Edit: screens attached-just made offering on Mitra Temple altar:
Mitra refused as You can see.
