Jobs for farmers (Farming Simulator 17)

Decided to do a little job for farmers. Performed 40 pieces. Almost before they wrote that jobs is no more. Wanted to fill the scale of trust in order to buy the field cheaper. But the next time you start the game, the scale of trust among all farmers was zero. This is a glitch or something else? Maybe competition? Or it is necessary for one gaming session to fill out the scale and buy the field? If anyone has faced this issue and decided. Please answer. This problem on the map of Sosnovka. On Goldcrest everything is fine. The scale is not falling