Another question: Could it be some function that should be enabled which isn't?
Not really, because it's just the single cron that disappears regularly. And I can't really think of a reason other than caching that could be causing it.
So for that reason I've asked you to check with the host.
Yeah I realised cron disappears even with the cache disabled. So the only thing that's left is to check with your hosting provider, if they have their own caching which could be causing the trouble.
You can probably explain them the issue you're facing which is "Cron suppose to backup the site disappears regularly" and maybe check what they have to say about it.
Karin, if you could let me know how it goes with them.
Does that mean I cannot use the database and object cache in combination with snapshot in te future if the backups proceed from now?
Shouldn't be a problem unless you'd like to modify the Backup schedule at some point. I've already re-enabled both the caches and I still see the backup schedule in cron list. Let's see if it runs at it's scheduled time today.
And in case you have to modify backup schedule, you would need to follow these steps:
* Temporary disable the object and db cache from W3 Total Cache
* Update the backup schedule from Snapshot
* Re-enable the cache and purge Object and DB cache specifically from W3 Total Cache settings.
And could this be caused by the cache the host offers? (Redis) No need to rush an answer.
Most likely yes and this can cause trouble with other plugins as well. Because without Redis, W3 Total Cache didn't create any trouble for me on my local server.
W3 Total Cache was causing conflict and not letting Snapshot to add cron jobs. I had to deactivate Database Cache and Object Cache for a moment and update Managed Backup schedule on the live site.
I can see the schedule in list of cron jobs now, set to run daily at 8:00 PM. Let's see if the backup finishes today
Hey Karin, Sorry for the delay in response.
I had a look at the site, and for some weird reason Snapshot is not able to register a cron for Managed backup on your site. And since this is a live site of yours we can't really debug on it to avoid any downtime.
I think the issue is mostly because of a plugin conflict and in order to confirm that I'm gonna try to install all the plugins on my local setup and try to replicate the issue.
I'll you keep updated, appreciate your patience in here.