I thought you might be interested in looking at [Solved] GAme Updater / Steam issues with 64-bit dev download.
https://forums.bohemia.net/forums/topic/201462-solved-game-updater-steam-issues-with-64-bit-dev-download/?do=findComment&comment=3142711
× Pasted as rich text. Restore formatting
Only 75 emoji are allowed.
× Your link has been automatically embedded. Display as a link instead
× Your previous content has been restored. Clear editor
× You cannot paste images directly. Upload or insert images from URL.