I have a Cleric of Arun who has proficiency is scroll and potion kits and has the cure wounds spell yet when I try to create a potion or scroll of healing, the cure wounds spell ingredient is blurred out. This was something already present in the game before. Is this really a problem of the character? I have no problem with Cleric of Life doing this. Do I need to have cure wounds as a domain spell?
Known issue - see several other threads on this. I don't know that Tactical Adventures has responded, but the problem goes away at higher levels.
I think you need to have Cure Wounds prepared, not just in your spell list. Domain Spells are always considered prepared, so a Life Cleric will always have the option to craft these potions. Take a long rest and tick the box for Cure Wounds being prepared and try again.
That being said, I find this requirement to be kinda silly. Being able to craft healing items is one of those things that would normally allow you to forego bringing a healer and play around with less traditional party setups, but that's out of the window when only the healer can make said items.
Typos happen. More so on the phone.
He already has the spell prepared, like I said, he can cast it during the day.