Please don't double-post. I merged these 2 threads.

This will happen generally for either of 3 reasons: 1. The computer crashes. 2. LW was not closed properly before shutting down computer (it can take a min or 2 sometimes to fully close down.) 3. Started using an earlier version of LW.

Go to LW Library window, select the incompletes folder, select the files & click resume button or right-click & choose force resume.

However, your incompletes will begin from 0% so be warned.