When I look at a vehicle with FLIR, they often have graphical distortions such as the hulls becoming invisible. These distortions get worse the farther you get from the vehicle. It's hard to explain, but the videos and photos below should demonstrate the bug in action. The same issue occurs with the Spike's missile camera, so it may manifest with normal daylight optics as well.
Here's a video of the bug
Release 10.22.2017 - 18.19.57.05.mp4