Since release a few game breaking bugs have plagued multiplayer sessions. Random disconnects, major frame drops followed by a crash or disconnect have been addressed. All of these still need extensive testing but after testing in large games and being able to track down the problem, I believe I have fixed that and overall made Multiplayer much more playable. There is still a lot of work to be done and other things in Multiplayer. Other fixes have been made in these patches as well.
0.9.1D (Development Build)
Fixed the constant Multiplayer Freezing and Disconnecting Issue
Added Driver role in Montgomery County to fix getting in back seat issue
Fixed floating barn fire
Fixed missing sirens on 255 and 283
All police customizer options now work as expected including setting message board text
Fixed Role Selection menu bugging out in Multiplayer sometimes preventing you from spawning a unit
Reduced lag spikes when characters are spawned in Multiplayer
Removed lag spike when players exit vehicles
Opened Windy Woods Way House gates
Fixed floating tree behind wildland station
Removed the obsolete clear calls icon on the Fire Academy
Fixed an over the shoulder cam error
Fixed a siren control error
Fixed Engine 1 Siren
Added Random Name generator to patients so names will always be different
Fixed car down embankment call fire not being synced
Fixed floating highway barrier and neighborhood props in MC
Fixed rotation of Ladder Fall Patient in Brooklyn when placing on backboard or laying down
Fixed floating barn fire in MC
Made some optimizations in Multiplayer
Other Fixes
Hotfix 0.9.1E (Live approx 8am EST)
Fixed hoses not returning properly in Multiplayer
Fixed not being able to see other players when they get out of their truck
Fixed a Multiplayer game freeze & disconnect caused by truck door syncing