CO-OP Blacksmith

[Magic]

My “coop partner” cannot add runes to weapons at the blacksmith Gerlinde.
Weapons that have rune slots are still displayed with a lock symbol.

We have also tried the following:
The other player dropped the weapon and I put a rune in the socket at the blacksmith.
This is still displayed correctly for me, but as soon as the partner takes the weapon again, no changes are visible - see picture.

https://ibb.co/yB0bft4m

[Elmdor]

The runes should still work even though your friend can't see them.

I tested it with mana regen rune in a shield and it worked for my friend.

[Magic]

thx

[BodhiZafa]

This might have to do with shared co op or not. If you aren't in a shared co op, your guest can not do runes.

If you are in a shared co op, they can use runes. To test if you are in a shared co op or not, see if they are getting the sanguinax healing item upgrades. If your guest can upgrade their healing item, they can also use runes. If they can not upgrade their healing item, they also can not use runes.

I haven't personally tested this information, this is just what I found on Reddit.