On premises installation (Windows). server version 8.4 2017-11-25 (build 84190914)
"Rebuild database" fails with an error message "configuration error" shown in the mystandard.
I can see backup succeeds, LCSEXPIMP.TXT is created, HANSA.HDB is renamed to HANSA.HDB-20181011. Rebuilding fails at import stage.
CN log:
2018-10-11 11:54:49 Couldn't launch process E:\Standard ERP Server\cloudnode\/hansa-windows-optimized-server64.exe, errno:2, message: The system cannot find the file specified.

2018-10-11 11:54:49 "E:\Standard ERP Server\cloudnode\\hansa-windows-optimized-server64.exe" --workdir "E:\Standard ERP Server" --hobfolder "/hob/" --exit-after-import --disable-sip LCSEXPIMP.TXT

That is true - hansa-windows-optimized-server64.exe doesn't exist there.

I noticed in the last versions of CN, CN runs executables from its own folder, that could be related.

Any ideas?