@ApprovingAcorn8 @SkyHead81 @FusionHorse151 Thanks for the replies guys. After 2 days of troubleshooting, reinstalling things, fresh windows installation, tweaking settings etc. I think I’ve finally found the cause… Bluetooth. I have a Bluetooth mouse and keyboard connected up which I think was causing the freezing when they woke/went to sleep. Hopefully I’m not speaking too soon, but since disabling Bluetooth before launching the sim, I haven’t had any more freezing 
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