[cough] @IntuitGabi 

I presume all Intuit Lacerte devs work in windowless silos chained to concrete slabs. If not please suggest. NOTE: Similar malfunction - application vanishing - in flavors of QuickBooks as well; say my boots on the ground busy shoveling client mess. How much does QB share with core Lacerte?! 😠

Description
Faulting application name: w21tax.exe, version: 42.0.0.2434, time stamp: 0x62f2454b
Faulting module name: clr.dll, version: 4.8.4515.0, time stamp: 0x624cf48c
Exception code: 0xc0000409
Fault offset: 0x0065d4c8
Faulting process id: 0x9f0
Faulting application start time: 0x01d8adaa97c849cb
Faulting application path: C:\Lacerte\21tax\w21tax.exe
Faulting module path: C:\Windows\Microsoft.NET\Framework\v4.0.30319\clr.dll
Report Id: 5e578dbd-1f15-4c9f-80d3-b28f7ecb6f15
Faulting package full name:
Faulting package-relative application ID: