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Sim starts in DEV mode then crashes when turning DEV off

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Installing Windows 11 24H2 caused big system fiasco requiring restore - now have everything working OK again except

MSFS always starts in Dev Mode and works as it should in Dev Mode.  But, if I try to terminate Dev Mode the sim ALWAYS suffers a terminal error which locks up the screen requiring a program termination thru Task Manager.

I cannot find a user.cfg setting or any other setting to tell the sim to NOT start in Dev Mode.   How do I get out of Dev Mode?

AMD Ryzen 7 9800X3D  / MSI X870 Tomahawk Mobo / 64 GB DDR5 memory / RTX 4070 Super with 12 GB VRAM / AORUS FO48U 4k display
 NVMe for Drive C, an NVMe device dedicated to Flight Sim 2024 and a separate NVMe device for Flight Sim 2020 and an NVMe dedicated to 500GB of addons managed by AddonsLinker   / 1 GB Comcast Xfinity Internet connection / HP Reverb G2 / Tobii 5 Head & Eye Tracking

 

Have you tried updating the MSFS SDK?  It might help you be able to close dev mode.  I also get CTDs in Dev mode sometimes 

My Liveries | FAA ZMP | PPL ASEL |
| Windows 11 | MSI Z690 Tomahawk | 12700K 4.7GHz | MSI RTX 4080 | 64GB 6000 MHz DDR5 | 500GB Samsung 860 Evo SSD | 2x 2TB Samsung 970 Evo M.2 | EVGA 850W Gold | Corsair 5000X | HP G2 (VR) / LG 27" 1440p |

 

 

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Solved - I forgot that I could go into Options and turn off Dev Mode there and then Apply/Save.  That path does not seem to use the same logic that crashes Dev Mode when I use the pulldown menu and terminate

AMD Ryzen 7 9800X3D  / MSI X870 Tomahawk Mobo / 64 GB DDR5 memory / RTX 4070 Super with 12 GB VRAM / AORUS FO48U 4k display
 NVMe for Drive C, an NVMe device dedicated to Flight Sim 2024 and a separate NVMe device for Flight Sim 2020 and an NVMe dedicated to 500GB of addons managed by AddonsLinker   / 1 GB Comcast Xfinity Internet connection / HP Reverb G2 / Tobii 5 Head & Eye Tracking

 

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