Export All extension randomly disappears and stops working

[AMcDonnell6]

We use the Export All extension in some of our workbooks and some teams would rely on it heavily. The extension randomly stops working on the server and the download button disappears from the workbook along with the dialog Tableau extension pop up.

We have asked our server team to check if anything has happened on the servers when the extension stops working and nothing jumps out to them such as any patches having being applied etc. We had been in contact with Tableau about this and they suggested it might be to do with your servers that host the extension going down but we have two servers Dev and Prod, the extension will stop working on one and be fine on the other so for this reason I don't believe this would be the cause. As the Technical support team do not support third party extensions we have kind of come to a dead end with this line of investigation.

I have had a quick look through some of the log files from around the time it has gone down previously but with limited knowledge of what I am looking for I cant see the cause.

So far our fix for the issue has been a reboot of our server which has always brought the extension back up. However this needs to be scheduled in so it means the users are left without the extension for in or around 2 days.

Has this issue come up for anyone before? Is there any solution for this or a known cause?

Thanks!