This has been addressed by people previously on a
different thread, and is most definitely not a problem unique to you.
Crafting is on the the same Global Cooldown (GCD) as placing items. GCD is in turn affected by Attack Speed.
The reason for crafting stopping is because:
1. Queue up and start craft by clicking CRAFT button. GCD timer and crafting timer begin, CRAFT button is greyed out in game UI
2. Crafting Timer completes before GCD timer; system attempts to begin ANOTHER craft in the queue as instructed
3. Cannot begin crafting as GCD timer has not completed, and cannot "auto-press" the GREYED OUT CRAFT button. Cancels action/queue by saying "You cannot do this right now".
4. GCD timer now completes, and then Craft button ungreys, you can begin again.
The fix for this is to use the SWEET spot of production boots, going fast as possible but not faster than your GCD would allow.
ie. reducing craft time to be just over global cooldown timer. This can easily be found by trial and error.
So... unequip stuff like Merchant's Costume: Basic, or don't use a Scroll...
That's why I said before people was "complaining that crafting too slow and now it too fast"... Obviously being too fast is a problem if it causes QUEUED up crafting orders to cancel but it is MANAGEABLE since it is on the USER end.
We already enjoy a
[bcolor=rgb(255, 255, 255)]BASE 2x speed increase on crafting for all things[/bcolor]... and then ALL the other boosts you can get to manage your speed...
Seems REALLY GOOD to me even if it is somewhat annoying to have to self manage your production boosts...