Impacted version: 0.38

Server Setup Information:

• Operating System: Ubuntu 16.04
• Deployment Method: snap

snap info wekan reports snap-id as jtpboSYvTCEyHoutkkRo1SI9ioSMOUb3 (tracking: stable). I’m not sure how to find out Node and MongoDB versions from the snap, but if the snap ID isn’t enough, just show me how to get those version numbers and I’ll add them.

• ROOT_URL environment variable (Is there a subfolder?): reproducible both with (https://my-domain.com/kan) and without subdirectory (http://localhost:5000 inside a VM).

Steps to reproduce:

1. Create a board in Trello.
2. Create a list in the board.
3. Create a card in the list.
4. Create a checklist in the card.
5. Export the board as JSON.
6. In Wekan, initiate a Trello import.
7. Map the user.

What I expect to happen:
For the board to be imported in Wekan.

What happens:
The importer reports a ’400’. journalctl -u snap.wekan.wekan.service reports

Exception while invoking method 'importBoard' Error: Sort is required
     at getErrorObject (packages/aldeed_collection2-core.js:480:15)
     at [object Object].doValidate (packages/aldeed_collection2-core.js:462:13)
     at [object Object].Mongo.Collection.(anonymous function) [as insert] (packag
     at packages/matb33_collection-hooks.js:127:46
     at [object Object]._.extend.withValue (packages/meteor.js:1122:17)
     at Object.directOp (packages/matb33_collection-hooks.js:47:27)
     at Object.self.direct.(anonymous function) [as insert] (packages/matb33_coll
     at models/trelloCreator.js:407:45
     at Array.forEach (native)
     at TrelloCreator.createChecklists (models/trelloCreator.js:400:22)
     at TrelloCreator.create (models/trelloCreator.js:606:10)
     at [object Object].Meteor.methods.importBoard (models/import.js:27:20)
     at packages/check.js:130:16
     at [object Object]._.extend.withValue (packages/meteor.js:1122:17)
     at Object.exports.Match._failIfArgumentsAreNotAllChecked (packages/check.js:
     at maybeAuditArgumentChecks (packages/ddp-server/livedata_server.js:1734:18)
Sanitized and reported to the client as: Sort is required [400]

I’m attaching the failing JSON (with email sanitized).