Neowin published a story that Windows 10 build 21292.1010 breaks x64 emulation on ARM PCs.
Windows 10 build 21292.1010 breaks x64 emulation on ARM PCs
Microsoft released a cumulative update for PCs in the Fast ring yesterday, but if you're running it on a Windows on ARM machine, you might want to skip this update as it breaks x64 emulation.