Have you tried splitscreen multiplayer?Ouch, sorry.
It works perfectly for me and I am not sure what could cause such problems. There are so many mods out-there not sure if there is a conflict with one ?
And it is visible on your last screenshot as well, the blue bars at the driver positions are gone and the red bar doesn't show the time difference between laps.
EDIT : Hmm, sound problem seems to be caused by something else but OSD problem is caused by the file. Will report later if I find out what caused it.