Kai- Jury Street problem caused by combination of FWE+Masterupdate
Without masterupdate I don't see any issues.
Yeah that we know, that's already fixed in 5.0
While we're on the subject of bugs, the EVE FOIP patches and Kai's 'Hellfire armor fix' both cause my game to crash on startup. I have no idea why, I just disabled them (and also EVE).
You are either missing a master, or you have them in the wrong location of your load order.
I've been trying to set up optimal combination of FWE+WMK+EVE+MMM. I have foip's, merged patch, kai's fixes and tweaks and mmm override, etc. Can't post my exact load order right now because I'm at work, but what I've found is that Mez's Merged patch causes CTD when I try to launch the game. when I turn it off and leave everything else on the game works normal.
You are missing some of the required files in that case. AGain you're missing a master.
Check the requirements carefully, as you need to have ALL DLC and ALL DLC support files from FWE, WMK and MMM.
If any of that is missing your game wont start. I would recommend you to simply create an own merged patch.