Hi again Jan,
As a first make sure you are using the latest versions of our plugins. Creating a backup before an update is always recommended. 😉
I guess you are using Advanced Post Manager. We are aware of this issue. When APM is active then the available number shows double the amount.
We already have a bugticket logged on this, so our developers will take a look at it.
I am going to set the status of this ticket to “pending fix” and we will update it once the fix is released.
If you have any new questions or issues please create a new ticket and we’ll help you out.
Thanks and cheers,
Andras