@startuml Title Bug Adding constraint with version 1.2021.3 legend genrated with %version() scale 5 as 80 pixels robust "To Demonstrate Bug" as ToDemonstrateBug concise "Bad" as Bad concise "Correct" as Correct Bad is Off ToDemonstrateBug is Off Correct is Off @0 as :Start @5 as :Dummy @9 as :Off_Start @10 as :Off @:Off_Start @:Off ToDemonstrateBug is On 'No problem if we remove next line ToDemonstrateBug@:Dummy <-> @:Off : {dummy } 'Workaround add @:Off again to solve '@:Off Bad is On @:Off Correct is On @enduml Submit amiga aws-orange black-knight bluegray blueprint cerulean-outline cerulean crt-amber crt-green cyborg-outline cyborg hacker lightgray mars materia-outline materia metal mimeograph minty plain reddress-darkblue reddress-darkgreen reddress-darkorange reddress-darkred reddress-lightblue reddress-lightgreen reddress-lightorange reddress-lightred sandstone silver sketchy-outline sketchy spacelab spacelab-white superhero-outline superhero toy united vibrant       🎉 Discover the future PlantUML Web Editor! 🚀  PNG  SVG  ASCII Art