Yes, I have the same problem and this came about just recently. Can't scan AD User Path, but Computer Path and Domain scanning seems fine.
My scanning user account is not part of the protected user OU, and it also has domain admin membership. This happened to a large number of different domains im monitoring and it happened all at once. I'm currently running version 10.4.4.4
This looks like an issue that is happening for lots of Lansweeper users and based on the forums and KB, Lansweeper isn't doing anything about it.
Lets go Lansweeper Support! we need this fixed.