I'm not sure if it's caused by some mods, but my worker interface fails to display properly. Meanwhile, I've noticed a pattern: if the first unit I operate at the start of a turn is a worker and the worker is outside my territory, it will display correctly. However, if I move it to an improvable cell within my territory, the display will go wrong. What's more, an unfamiliar icon will appear on the operation interface, and if I click on it, the interface will disappear and I won't be able to continue the operation.