Yeah, this issue has popped up recently again. Seems like since the last MOD update after some time jobs will simply disappear for me too, for both games. The one solution I use is editing the profile config file in my own profile directory (config.cfg) and look for the line of uset g_force_economy_reset "0" and set it to "1". (Of course the game mustn't running when you do this). When you enter the game your position will be reseted and your truck set back to your main home garage but will also re-enable the economy. Save your game afterwards, exit the game and set back the same line to "0" so the economy won't get reseted with each game start.
I am not quite sure why this happens, but it has to do something with the synchronization of the time (game time) between hosting server and your game. This is not something serious, just something annoying. I can live with it, yet I would be happy if this issue would disappear. :-)
See here as well: https://steamcommunity.com/app/227300/discussions/1/46476144700406967/