Could you please send me a LR Desktop diagnostig log - best as a private message with a downloadable dropbox link.
You can trigger the log via LR Desktop preferences -> Lightroom Mobile and when you hold down the alt key you will notice a generate diagnostic log button
I have found the problem: I had not the proper permition to the map Pictures/Lightroom.
After changing that; Lightroom writes a folder Mobile Downloads.lrdata in that map en started the sync. Now it works!!
Can i change the location of that map somewhere in Lightroom?
Glad that it's working for you now.- Guido
If you didn't have the proper permission, how did you discover that and how did you go about changing it?
I have the bizarre situation that photos imported into LR Mobile on my tablet are synced with LR Mobile on my phone but do not appear in my LR Desktop installation. Also, photos in my LR desktop installation do not appear on my phone or on my tablet. It seems that LR Desktop and LR Mobile are ignoring each other.
Do you have a Mobile Downloads.lrdata entry under Pictures/Lightroom. If not could you open up the os-info for the picture directory and double check the access permissions. Lr Desktop need read+write prermissions to this dir. Hope this helps. Btw. is there a chance for you to update to the most recent Lr Desktop version?