Making a modded terrain based off of the Barren Islands in Alaska. I placed the CameraManager module down, and specify to start on the camera position in the play drop down menu. When pressing F5 or 'play' the main viewport turns black, holds for a few seconds, and then crashes with the following error:
Access violation. Illegal read by 0x7ff70b5e00ee at 0x0
Loading the map editor, loading the appalachia project, and then attempting to enter the F5 mode. Viewport turns black and then the program crashes to desktop.
After some testing, it seems to be related to setting the bounds of the world further than the default. I tried making a new terrain and I was able to press F5 without crashing, however after editing the bounds to go past the 3000 default, F5 no longer worked.