All of a sudden a start game enabled quest no longer starts properly and SQV show the state as Waiting For Stage.

Has anyone had this problem before? My quest script doesn't even have states.

I'm not sure if it was the cause, but I had an ESP file in my Data folder I was looking at, and it had gotten enabled in my load order. Without the BSA being there. It's working again, so that was likely the problem? Anyway, here for search results.

i've had this once, reason was a loop in a script on a couple of that quest's aliases that caused stack overflows (you'd see these in your log, lots of "dumped stack" entries and empty temp variables), which apparently hindered the quest (it's aliases) from finishing to initialize, so it got stuck before reaching it's initial stage (i think this doesn't even depend on if that quest actually has stages, or wouldn't it initialize to stage 0 then?)