After my duplicants uproot old crops on farm plots/plant box, I'm not allowed to select any other seeds to replant. It shows a grey "plant" button when I clicked on a different seed. I had to deconstruct farm plots/plant box and rebuild them to plant a different type of crops over and over again. I never encountered this issue in the base game, this bug is unique to dlc.
1. Uproot existing crops on farm plots/plant box
2. Select a different kind of seed
3. Won't allow me to select