Currently on Lamannia we are unable to crit with archery and ranged weapons. Shuriken included. It appears to be something about confirming the critical hit. Hits where you should crit appear to simply disappear and do nothing.
This is completely gamebreaking for anybody who uses ranged. Artificers, Monkchers, Shuriken builds, everyone.
Please, do not let this bug go live like so many others have in the past.