No RC support for Ä. Ö & Å?

[Salaisuus]

I saved an npc to RC's weapon list with the name "1kenkät".
The weapon works when player uses it and I see it in the weapons list.
But when I try to edit it on the RC says:

"prob: weapon 1kenkät doesn't exist"

And wont open it even tho its there.
Ofcourse it wont find 1kenkät because its named 1kenkät...Pfft...
So I guess letters like ä shouldnt be used for npc names?
And is there any way to open the weapon now?