in a class diagram, I tried to render a link with an association class and with a note, but the note was ignored.
If you delete the line containing the association class, everything is fine.
A - B
note on link: note on link with assication class is ignored
(A, B) .. AssociationClass
The result with the missing note: http://plantuml.com/plantuml/png/Iyv9B2vMSEHA1jDEKDgnk3W_EJEn93C_pnaamEMee0kKpCilILN8prF8oSpBjb90vYcKPvPaA01LPYQ3TIb0pCa4elIy_ABK52uDHnq59qq5FJqCmm40
I got the same result using plantuml.8046.jar