OS: Windows 7 64-bit
Game: Dune 2000 GruntMod edition
Not long after starting any mission, infantry and trikes etc lose the green movement arrows, showing only red arrows, which of course means they always attack at their destination when they arrive (unless I click on unrevealed terrain, which always has green arrows). When this bug(?) happens, it affects the harvester too. It also ignores all clicks on other spice deposits and just carries on harvesting from its original location, and the down arrows don't appear when hovering the cursor over the refinery.
