REF: SAP Note 2120549 - SAP GUI 740 - SAP UI landscape format issued instead of saplogon.ini
Workaround:
1) Open the Registry Editor with "Windows" → "Run" and enter "regedit"
2) Delete the Key "LandscapeFormatEnabled" under path:
"HKEY_CLASSSES_ROOT\VirtualSorte\MACHINE\SOFTWARE\Wow6432Node\SAP\SAPLogon"
Cheers,
Dan Mead