Talk:Research & Development/McLaren 650S GT3/@comment-2003:86:6B50:3D74:A1E3:D9F3:1A61:A96C-20171112040859/@comment-33197799-20171112144622

I understand your pain. I have lost 3 keys due to app refused to sycronize my progress. I'm on android. Since then, I have habit of rebooting my device everytime I play this R&D. All is ok after that. See if rebooting helps you.