This is a serious bug in the Adobe Software. When Tethering to Canon 7D or 40D Lightroom does no recognize the files. I am unable to Download files from my camera directly into Lightroom. This problem renders half of the software useless. what is the fix? Some forums say it is a windows 10 problem some say canon and others Adobe. Whomever, the problem should not exist. Converting to DNG prior to import is NOT a solution! Tethering is still unavailable. Using Latest Version 2018, updated.
Fixed!! by Adobe!! Conflict in Startup files. Disabled Startup programs that may have had conflict. Now Software works as it should! I hope this helps someone. Windows 10 Adobe CC 2018 ACR10 LR7.1