Quote Originally Posted by Marco View Post

I mean, after I upgraded Fix42Mod to latest version, and then combined the demo, I didn't lose any part. The demo worked 100% with no desyncing.
Besides - if you take a closer look at the .bst file - you'll see there is a client ID - all bad syncs are per player !
Bad syncs present in demo file - not necessary break the whole demo ..... have you checked all players ?