I just saw that in a year my database grow up quite big. Is there some way to make a cleaning using native ES actions? Something like delete cloud files by mask, or get the list of all files from mysql (so I could sort the unused one and delete them)?
I understand that it's an easy task for a simple MySql query, but It need to be synced with Unity's data so it's actually quite tricky in my case
As data can only be deserialised in Unity, you would need to download each piece of data and determine yourself whether a particular piece of data needs deleting.
I've had no other reports of this, and unfortunately it's not possible for me to tell what is happening without replicating it at my end. Please could you send me a very basic project which replicates this?
Also, assuming it contains no sensitive data, please could you PM me a dump of your MySQL data as a .sql file so that I can recreate the database at my end and understand what is happening?
This issue was fixed a few updates ago, so updating from the Asset Store should solve your issue. You should also check you're using the latest ES3Cloud.php on your server.