Sony RX100 VA and also the VI cannot be viewed by Lightroom 6.  There is a hack to make the files work though.

Using exif tool change the raw file to state that the photo was taken by a rx100 v.

exiftool -sonymodelid=”DSC-RX100M5″ -ext ARW -r DIRECTORY

Source:
https://www.codenewengland.com/2018/08/01/import-sony-rx-100-va-arw-files-in-lightroom-6/