I've completely installed, removed, re-installed DCS, same issue. Used Run Repair and Clean, it doesn't list any problems.
00000.014 --- Log file: C:\Program Files\Eagle Dynamics\DCS World OpenBeta\autoupdate_log.txt
00000.000 === Log opened UTC 2018-11-19 20:35:15
00000.007 INFO : DCS_Updater/2.9.6.79 (Windows NT 10.0.17134; Win64; en-US)
00000.007 INFO : cmdline: "C:\Program Files\Eagle Dynamics\DCS World OpenBeta\bin\DCS_updater.exe" --apply cleanup
00000.008 STATUS: Initializing...
00000.013 INFO : basedir: C:\Program Files\Eagle Dynamics\DCS World OpenBeta\
00000.013 INFO : dcs_variant.txt: openbeta
00000.014 INFO : DCS/2.5.3.23954 (x86_64; EN; WORLD,FA-18C,F-5E,RAZBAM_M-2000C,VEAO_HAWK,MI-8MTV2,A-10C,FC3,CA,KA-50,SU-33,PERSIANGULF_terrain,NEVADA_terrain)
00000.014 INFO : branch: openbeta
00000.014 STATUS: Scanning for extra files...
00003.650 STATUS: Cleaning up...
00003.915 STATUS: Successfully cleaned up.
00005.493 === Log closed.
00000.000 === Log opened UTC 2018-11-20 01:39:03
00000.007 INFO : DCS_Updater/2.9.6.79 (Windows NT 10.0.17134; Win64; en-US)
00000.007 INFO : cmdline: "C:\Program Files\Eagle Dynamics\DCS World OpenBeta\bin\DCS_updater.exe" --apply cleanup
00000.008 STATUS: Initializing...
00000.013 INFO : basedir: C:\Program Files\Eagle Dynamics\DCS World OpenBeta\
00000.013 INFO : dcs_variant.txt: openbeta
00000.014 INFO : DCS/2.5.3.23954 (x86_64; EN; WORLD,FA-18C,F-5E,RAZBAM_M-2000C,VEAO_HAWK,MI-8MTV2,A-10C,FC3,CA,KA-50,SU-33,PERSIANGULF_terrain,NEVADA_terrain)
00000.014 INFO : branch: openbeta
00000.036 STATUS: Scanning for extra files...
00004.860 STATUS: Cleaning up...
00005.233 STATUS: Successfully cleaned up.
00011.570 === Log closed.
00000.000 === Log opened UTC 2018-11-20 01:39:18
00000.007 INFO : DCS_Updater/2.9.6.79 (Windows NT 10.0.17134; Win64; en-US)
00000.007 INFO : cmdline: "C:\Program Files\Eagle Dynamics\DCS World OpenBeta\bin\DCS_updater.exe" --apply repair
00000.009 STATUS: Initializing...
00000.015 INFO : basedir: C:\Program Files\Eagle Dynamics\DCS World OpenBeta\
00000.015 INFO : dcs_variant.txt: openbeta
00000.015 INFO : DCS/2.5.3.23954 (x86_64; EN; WORLD,FA-18C,F-5E,RAZBAM_M-2000C,VEAO_HAWK,MI-8MTV2,A-10C,FC3,CA,KA-50,SU-33,PERSIANGULF_terrain,NEVADA_terrain)
00000.015 INFO : branch: openbeta
00000.015 STATUS: Connecting to update servers...
00000.910 INFO : Got reply from http://www.digitalcombatsimulator.com
00001.219 INFO : Got reply from srv9update.digitalcombatsimulator.com
00001.222 STATUS: Verifying cached version info...
00001.573 STATUS: Verifying installed files...
00006.594 INFO : 0 files are changed or missing.
00008.931 STATUS: Preparing download...
00008.932 INFO : To download: 0 bytes in 0 files
00008.932 STATUS: Searching for already downloaded files...
00008.933 INFO : Found 0 local source(s).
00008.933 INFO : To download: 0 bytes in 0 files
00008.972 STATUS: Removing obsolete files...
00009.056 INFO : Removed 0 files.
00009.424 INFO : Kept 42756 files.
00009.424 INFO : Nothing to install.
00009.461 STATUS: Installing runtimes...
00010.421 INFO : distr/vc_redist.x64.exe succeeded with code 1638
00010.735 STATUS: Cleaning up...
00011.102 STATUS: Successfully repaired version 2.5.3.23954@openbeta
00014.595 === Log closed.