Hi Lowell,

That sounds frustrating for the user. If it started suddenly without changing Laserfiche, only for one user, and persists through a repair, it's unlikely to strictly be a Laserfiche software issue, but might be a negative interaction with some abnormality in that user's environment. 

Something I would try (if possible) is having that user log into a different workstation with the same version of Laserfiche Scanning and see if the same issue comes up. That might give a hint as to whether something is going on with their AD account. If it works for them without issue on the other machine, something is likely up with their own workstation.

If you're not able to sort out what's going on after running some tests like the above, I recommend working with your Solution Provider to open a support case.

Best of luck,
Sam