When adding three consecutive notes in sequence diagram, one appears missing, and the others out of order

Question

This UML design:

a->b
note right : 1. right
note over a,b : 2. over
note left : 3. left
a<-b

produces a diagram where note #1 is missing and #3 is before #2

Answer 1

This has been somehow fixed in last beta: https://dl.dropboxusercontent.com/u/13064071/plantuml.jar

Note that you have to change your diagram definition:

a->b
note right : 1. right
note left : 3. left
note over a,b : 2. over
a<-b

Is this what you are expecting ?