Just what the title says. It happens after 40-45 minutes of gameplay. It is really a pain when I am streaming a scenario and I suddenly have to go back to the menu to get my tools to work again. I am using the latest stable build on Windows 10 64-Bit, disabled DPI scaling in the Compatibility window.
CPU: Intel i5-6400 @ 2.70Ghz QC, Chipset: Skylake , 8GB RAM (DDR4), Graphics: nVidia GeForce GTX 745 VRAM: 4GB DDR3, running in both 1600x900 and 1280x720 res, the 1280x720 is for streaming, and the 1600x900 is for regular play.
My current options.ini file is attached
config.ini