Please attach a test project that replicates this problem. Also, specify what is in the resource? You can attach the project and the file for the resource here or in a forum PM.
@G99Kfn3x3ku The problem with the slow work of BAS is connected exclusively with the firewall. In future updates, @support will fix this, but for now only through adding to exceptions.
Select "Mix Lines" in the resource, that way all the lines are mixed and thus it will have a random line. Or you can use javascript to mix the array list using function shuffle to get a better constant randomization. I believe there's also the option "Shuffle List" under the "List" option
