previews get lost between sessions

[getho]

Why is this? I'll render previews before signing off for the night, next morning open the project and they're mostly gone.

There doesn't appear to be any correlation between what keeps it's previews and effects or transitions.

Anyone else find this or is it just me?

[Peru Bob]

What version of Premiere Pro?

What operating system?

Where are the preview files stored?

Are you using external drives or network drives?

[JohnSmibert]

I have a similar problem.

I am using PP CC 2018 on Windows10 and am new to CC.

After 2 days on a project (regularly saving) I loaded up yesterday to find my sequence was not in the timeline and was not listed in my project files.

I went back to the autosave and cannot find the sequence there either (in any version).

What should I do?

[Peru Bob]

Do you have backup files?

What exact number version of Premiere Pro?

[getho]

Its current version, all up to date on win10. preview files are stored in the same directory as the project files which is very close to the media files. All drives are local

[Ann Bens]

I have seen this issue also.

Made a new project, cleared preferences and seems to solved it.

[excited_Genie16B8]

My workaround for 'lost' preview files in Premiere