This had been happening for a while and I wasn't sure why. I believe I have found how to easily recreate the issue now:
Simply right-click on impassable terrain, such as a mountain or water, and the ? will now be your cursor until you right click on normal terrain again. (This was happening a lot around Flintolg castle due to all the mountains).
Extra info just in case:
Computer Specs:
OS: Windows 10 Home 64-bit
GPU: NVIDIA GTX 960M
CPU: i7-6700HQ CPU @ 2.60GHz
RAM: 16Gb
Motherboard: GL552VW
Storage Device (HDD/SSD): 120GB SSD
Simply right-click on impassable terrain, such as a mountain or water, and the ? will now be your cursor until you right click on normal terrain again. (This was happening a lot around Flintolg castle due to all the mountains).
Extra info just in case:
Computer Specs:
OS: Windows 10 Home 64-bit
GPU: NVIDIA GTX 960M
CPU: i7-6700HQ CPU @ 2.60GHz
RAM: 16Gb
Motherboard: GL552VW
Storage Device (HDD/SSD): 120GB SSD