Quota incorrect

We had a requirement to automatically delete files after a certain number of days and have set a recurring scheduled event to run on the MYSQL schema and a windows scheduled task to run on the server to do the following

1. Delete all rows in the SQL table where the post_type is buddydrive-file and the post is older than 10 days

and

2. Empty the BuddyDrive uploads folder for files which are older than 10 days

Unfortunately this seems to have screwed up the user quota calculations as one user has no buddydrive files but is showing 12% used, when I add a new file it does increase and decrease up and down from 12% but not back to 0%

Is there some kind of cache that also needs to be cleared as part of this schedule?

Has anyone else set this functionality up but in a different way?

Thanks

https://wordpress.org/plugins/buddydrive/