Great, thank you for the tutorial! I saw somewhere that Karritz (I cannot link or copy or refer) gave the tip to level the grounds first with the landscape tool and cover it with wood flooring (the free ones), to make sure that the ground is flat (before it is too late to change), and remove it once the track has been put in place.
I did just that and got the track to work on the first try. I have a small oval (smallest), and plant inside of it and 4 squares outside of it, also a tip I saw somewhere. The computer needs to be good to handle a lot of plants (the game itself in all reality, EA's specifications are only for base game...), but I clear out the inventory of harvestables after each run, also a tip I read. My money trees stopped giving bags even though they were in 'harvest state', both when planted in the tractor track and in the store item "Swift Gro Gardening Station", put on the same lot. Maybe there is some conflict between the tractor and them.
Planted long ago..roots go deep.. (sorry could not resist).