WeilerAthertonClipper#constructor needs a subject polygon with a positive signed area

[Nordiii]

What happened?

Expected to load the scene "The Valley of Stone" but got an error.

Sorry if this should rather go to premium modules.

What ways of accessing Foundry can you encounter this issue in?

• Native App (Electron)
• Chrome
• Firefox
• Safari
• Other

Reproduction Steps

1. Created a World in v10 with the "The Demon Queens Awakens" awakens module.
2. Update Foundry to v11 and update D&D5e System
3. Migrate the World.
4. Open scene "The Valley of Stone"

Every other scene has no Problem.

What core version are you reporting this for?

Version 11.295

Relevant log output

Error: Failed drawing interface canvas group: WeilerAthertonClipper#constructor needs a subject polygon with a positive signed area.. WeilerAthertonClipper#constructor needs a subject polygon with a positive signed area.
    WeilerAthertonClipper http://192.168.2.118:30004/scripts/foundry.js:49051
    combine http://192.168.2.118:30004/scripts/foundry.js:49146
    intersectPolygon http://192.168.2.118:30004/scripts/foundry.js:45068
    _constrainBoundaryShapes http://192.168.2.118:30004/scripts/foundry.js:47691
    _compute http://192.168.2.118:30004/scripts/foundry.js:47137
    compute http://192.168.2.118:30004/scripts/foundry.js:32583
    create http://192.168.2.118:30004/scripts/foundry.js:32560
    createPolygonWithAttenuatedThreshold http://192.168.2.118:30004/scripts/foundry.js:32783
    _createPolygon http://192.168.2.118:30004/scripts/foundry.js:42033
    initialize http://192.168.2.118:30004/scripts/foundry.js:41890
    initialize http://192.168.2.118:30004/scripts/foundry.js:42221
    updateSource http://192.168.2.118:30004/scripts/foundry.js:50484
    _draw http://192.168.2.118:30004/scripts/foundry.js:50377
    draw http://192.168.2.118:30004/scripts/foundry.js:27185
    promises http://192.168.2.118:30004/scripts/foundry.js:33858
    map http://192.168.2.118:30004/scripts/commons.js:4092
    _draw http://192.168.2.118:30004/scripts/foundry.js:33855
    draw http://192.168.2.118:30004/scripts/foundry.js:33361
[foundry.js:753:30](http://192.168.2.118:30004/scripts/foundry.js)
    onError http://192.168.2.118:30004/scripts/foundry.js:753
    draw http://192.168.2.118:30004/scripts/foundry.js:25634

Bug Checklist

• The issue occurs while all Modules are disabled

[Feu-Secret]

Will be addressed by

• Do not activate a point source whose origin is not inside the bounds of the scene #9282