Turns out I didn't wait long enough. If you look at the timestamps it took an hour and 19 minutes to do anything, much longer than the other choices required (this is with the MBR+Legacy choices).
2020-02-06 14:38:14 T:000047A0 .\LicenseKeyRegEx.cpp 317 BFEBFBFF000906EA HP
2020-02-06 14:38:14 T:000047A0 ============.\InstallWindows.cpp 136 nRet=0x0000000000000000 Target(nDiskNumber=2 nSysPartNumber=2 nBootPartNumber=1)============
2020-02-06 15:57:03 T:0000320C .\SymbolicLink.cpp 152 nRet=0x0000001500970000
2020-02-06 15:57:03 T:0000320C .\RegLoad.cpp 237 nRet=0x0000001300EC0000
2020-02-06 15:57:27 T:0000320C .\FilePublic.cpp 1161 nRet=0x0000000000000000
2020-02-06 15:57:27 T:0000320C .\RegLoad.cpp 237 nRet=0x0000001300EC0000
2020-02-06 14:38:14 T:000047A0 .\LicenseKeyRegEx.cpp 317 BFEBFBFF000906EA HP
2020-02-06 14:38:14 T:000047A0 ============.\InstallWindows.cpp 136 nRet=0x0000000000000000 Target(nDiskNumber=2 nSysPartNumber=2 nBootPartNumber=1)============
2020-02-06 15:57:03 T:0000320C .\SymbolicLink.cpp 152 nRet=0x0000001500970000
2020-02-06 15:57:03 T:0000320C .\RegLoad.cpp 237 nRet=0x0000001300EC0000
2020-02-06 15:57:27 T:0000320C .\FilePublic.cpp 1161 nRet=0x0000000000000000
2020-02-06 15:57:27 T:0000320C .\RegLoad.cpp 237 nRet=0x0000001300EC0000