I'm like you with updates, and on one of my 4 systems I also install optional previews of windows 11 update rollups. I got bit, because there was no problem with a week's worth of running on my Win 11 laptop, so I installed the optional patch on a Win 10 Pro system and ended up with Rescue Media boot symptoms very similar to yours. To decide on similarity, see the sordid details in this post: https://forum.macrium.com/73641/Blue-Screen-on-RE-Rescue-Media
. You'll see that very few people have encountered the issue. I finally restored the system from a backup from before the application of the dastardly bug fix, and then dreaded the upcoming mandatory version of the patches, but so far it has not been seen in the patches released yesterday. The four systems at my place are up and running on the versions shown in my signature below.
I've been very verbose with details about what I encountered inthe post, and it mirrors what I've reported to Reflect Support, so if you think you have the same issue, you MUST have applied the Optional Preview patch, starting with the same beginning versions of Reflect and the OS, built your Rescue Media using WinRE 10 from the same after-update version of Windows 10, and get the same error code when booting the RM (it can be from the Windows Recovery Boot Menu (WRBM) or from booting the same version from a flash drive. It will NOT appear if you use WinPE 10 instead of WinRE 10 to base your Rescue Media on so that lets you have a version of RM that works as you restore your system to pre-patch version.
Edited to correct the versions shown in my signature.
L.W. (Dan) Danz, Overland Park KS
Reflect v8.1.7784+ on Windows 11 Home 23H2 22631.2792+
Reflect v8.1.7784+ on Windows 10 Pro 22H2 19045.3693+
Reflect v8.1.7638+ on Windows 10 Home 22H2 19045.3693+