Lightroom desktop sometimes fails to wake up properly after the computer has gone to sleep, requiring it to be restarted. Long-running operations, such as syncing of newly imported files or large exports, can get repeatedly interrupted by this.

Lightroom 3.3 and 3.4

Workaround

We are aware of this issue and are working on a fix.

In the meantime, you can change the sleep settings on your system to avoid this problem:

Windows

macOS