Miscellaneous: Silvered Scimitar combine bug?

[unim21]

I'm following the recipe on EQtraders.com (since the wiki is down) which calls for the following:

1x Curved blade mold
1x hilt mold
1x pommel mold
1x enchanted sheet metal
1x enchanted silver bar
1x water flask

When I hit "combine", I get the standard "you cannot combine these items in this container type!" message. At first I wondered if it was related to all combines being broken, but then I tested other recipes and they work just fine.