Lightroom is deleting 1:1 previews

[jm68902488]

Hi,

Lightroom is deleting my 1:1 previews after a few days even though I have preferences set to keep them for 30 days.  Any ideas or fixes?  Maybe a cache limit?

Thanks

John

[AxelMatt]

How much free disk space do you have on the drive where's the preview cache is located?

[jm68902488]

271 GB

[JohanElzenga · Accepted solution]

Go to Catalog Settings and check if there is a limit set to the size of the previews cache. Also remember that previews need to be rebuilt when you've made changes.

[jm68902488]

Yes it was set to 5 by default.

[JohanElzenga]

Yes it was set to 5 by default.
By @jm68902488

Only 5GB? That is extremely small, meaning Lightroom has no choice but to delete previews very rapidly.

[jm68902488]

I guess that could be why? It was set by default to that. What is a
recommended cache setting?

[JohanElzenga]

There is no recommended setting, but it makes sense to give Lightroom plenty of disk space for the previews.