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Sounds like a bug! If you can post it to the Issues Tracker with the video link, that would be great, thanks: https://github.com/TheGameCreators/GameGuruRepo/issues
PC SPECS: Windows 8.1 Pro 64-bit, Intel Core i7-5930K (PASSMARK:13645), NVIDIA Geforce GTX 980 GPU (PASSMARK:9762) , 32GB RAM