My realistic build times is turned off.
Any other suflggestions? Maybe I should refresh everything?
That would be a great place to start. I would use the desk and refresh the plots at the entire settlement. A splash prompt will tell you not to leave the settlement until all the plots have refreshed.
Then give it a few days in-game. What I mean, is refresh “when complete”, leave that settlement go somewhere else “sleep” and / or do another quest. Then come back a
few in-game days and check. Make sure a settler is assigned to the plot before leaving.
I am not sure how much time you are willing to invest fixing your issue. Below would be a test you could try if the above does not work.
I would go back to a save where you first started placing the plots in the “1st” settlement. You can go back to the current save later. Place one Ag-plot, assign a settler and then give it a few days in-game. What I mean is set it up, leave that settlement go somewhere else “sleep” and / or do another quest. Then come back a few in-game days and check.
It is a-bit confusing to me that there is no food being produced at all 7 settlements from the Ag-plots. If you built all 7 settlements really quick, I am not sure but think that may clog things up a-bit.
Has this always been the case or did it just start? Did they ever produce food?
Also, are these plots generated by ROTC as a settlement or plots that you individually placed?
In fo4 problems get baked into a save file you may need to go back to an earlier save and try again making sure the plots are working before putting a lot of time into progressing the game.
If the above does not work then it gets more Technical: Some mods may not have installed correctly and need to be manually installed / re-installed, troubleshooting load order and looking for conflicts and / or using tools like Loot, f4edit and fallrim.
Lastly, not knowing your game a painful but common problem fo4 is save file corruption “modded-game or vanilla”. Then going back or starting over is likely.
Sorry about being long winded but it is a process. Still, I hope it helps. We all are noobs. I just felt bad you were having problems nav-ing the desk menus.