Uncaught TypeError: Cannot read property 'type' of undefined
http://localhost:8069/web/content/1165-e62d563/web.assets_backend.js:1005
Traceback:
TypeError: Cannot read property 'type' of undefined
    at Class._prepareItem (http://localhost:8069/web/content/1165-e62d563/web.assets_backend.js:1005:304)
    at Class.prototype.<computed> [as _prepareItem] (http://localhost:8069/web/content/496-2d3651d/web.assets_common.js:3538:488)
    at Function._.each._.forEach (http://localhost:8069/web/content/496-2d3651d/web.assets_common.js:12:558)
    at Class.init (http://localhost:8069/web/content/1165-e62d563/web.assets_backend.js:1003:1283)
    at Class.prototype.<computed> [as init] (http://localhost:8069/web/content/496-2d3651d/web.assets_common.js:3538:488)
    at new Class (http://localhost:8069/web/content/496-2d3651d/web.assets_common.js:3539:65)
    at Class._createGroupByMenu (http://localhost:8069/web/content/1165-e62d563/web.assets_backend.js:920:221)
    at http://localhost:8069/web/content/1165-e62d563/web.assets_backend.js:893:448
    at http://localhost:8069/web/content/496-2d3651d/web.assets_common.js:802:681
    at fire (http://localhost:8069/web/content/496-2d3651d/web.assets_common.js:796:299)