Hello. Displaing Partition through different Swimlane is incorret. Thank you.
Example
https://pastenow.ru/A4W0U
@startuml
skinparam shadowing false
|actor1|
start
:action1;
:action2;
partition Group {
:action3;
|actor2|
:action4;
:action5;
|actor1|
:action6;
}
stop
@enduml