Hi,
Minor issue when using teoz, creating participants and using & note.
In version 2019.04
@startuml
!pragma teoz true
participant Bob #red
participant Alice #white
participant Ken #yellow
participant Jane #pink
Bob -> Alice : hello
& note right of doc: txt
Alice -> Ken ** : Birth
& note right of doc: txt
Alice -> Jane ** : Birth
note right of doc: txt
@enduml
Line for Ken start too early. That is triggered by "& note".
br,
Hannu