For the thing is changing, loge will not call logi by itself, we need invoke !logexts.logi explicitly in advance.
The up to date procedure is
- 
LogManifest.lgm is in wrong place, so
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cd C:\Program Files (x86)\Windows Kits\10\Debuggers\x64\winext copy LogManifest.lgm ..
 - Start WinDbg, click main menu, File, Open Executable...
 - 
In command bar of WinDbg, input
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!logexts.logi g !logir g
 
We will find a folder named ApiLogs lying on the Windows desktop. After the debuggee process exits, by using logviewer.exe we can open files in it, with .lgx suffix.