I've had an ongoing issue with the WebAssign building block for as long as we've had it running. Here's what happens: after a Bb server restart (we are MH) the WA auto-sync processes stop. To fix, all I do is navigate to the B2's auto-sync settings page and Save the page (after faculty complain that their course isn't syncing). I've been working with WA support for about a year and a half (with almost zero results) and recently began discussing this with Tony Lutz, Bb Client Support Engineer, who has been extremely helpful.
Has anyone else experienced this auto-sync issue with the WA building block? We are trying to find a pattern. We even setup a new test environment and got the same results, so now we're beginning to think the issue can't be unique to us.