XPS 8940, SupportAssist stopped working

Hi fmeng:

What is your Windows OS [if Win 10 or Win 11 please include the edition (Home, Pro, etc.), version and OS build number shown at Settings | System | About | Windows Specifications] and current SupportAssist version? Is Microsoft .NET Runtime v6.0.x installed, and if so what version shown at Control Panel | Programs | Programs and Features? Do you see a specific error message when you try to launch or run SupportAssist?

I just launched SupportAssist v3.12.3.5 on my Inspiron 5584 and ran a manual "Get Drivers & Downloads" scan and it appears to be working correctly.
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64-bit Win 10 Pro v21H2 build 19044.2130 * Firefox v106.0.1 * Microsoft Defender v4.18.2209.7-1.1.19700.3 * Malwarebytes Premium v4.5.16.217-1.0.1792 * Macrium Reflect Free v8.0.6979 * Dell SupportAssist v3.12.3.5 * Dell Update Windows Universal v4.6.0 * Inspiron 5583/5584 BIOS v1.21.0
Dell Inspiron 15 5584, Intel i5-8265U CPU, 8 GB RAM, 256 GB Toshiba KBG40ZNS256G NVMe SSD, Intel UHD Graphics 620