Board Thread:LotR Mod Technical Support/@comment-35080062-20180323001926/@comment-25330335-20180326134442

Which is a bug and should be fixed...

Just make sure that you have 32px vessel images (the empty ones), and 32px actual drink images.

If you're interested in learning a little more about how those drink images are actually generated, I wrote a little script a while back that does the composition (for the wiki).