I have also encountered this issue. I've had my Vive pro for about two weeks and was having a few issues with it and then my friend reminded me the entire setup probably had a firmware update I could perform. After this update was complete I found both controllers LED indicators remain oragne no matter how long they're left on charge. I have read through this thread and tried VibrantNebula's suggestion to unplug them from their power source and then plug them back in but they go white for about 1 second and then return to being orange.
