Hello,

After an operating sistem restart an important avid liquid project is hidding all the folders. All the secuencies are visible and able to be launched in timeline, but all the objects (source video, photos, etc) are just invisible for Liquid, even when all the material is still present in the same windows folders. I dont know how to get back the folders view, specially when I dont have any backup of that project.  Any ideas??

Check to make sure that media management is still pointing the correct folder in the Liquid control panel.

Liquid does not make automatic backups of projects, you need to do that manually.