Thanks for the details.

Could you check in the Javascript console (F12 then select the "Console" tab) if you have any error or warning when this happens ?

I guess you are using user authentication ?

If so, I might have a lead.

I don't know why this is happening, but if it happens often, let me know.

Ok, thanks to your logs I found at least one problem.

The "raw files" section won't work with Java 7 until I fix it.

(I broke it in the latest release)

You did not miss anything, I just created it !

Since I'm becoming a bottleneck for the updates of the tutorials written by users, I have set up a wiki so that anybody can contribute.

It's here (also accessible through the help section of Ubooquity's site).

Thanks for pointing it out. I'll investigate.

There has to be a bug. I'll look for it.

If your current version is 1.7.0 or later, the library will not need to be rebuilt, just replace the jar file.

(there has not been any breaking database modification since then)

Chris sent me his version of the tutorial, I asked him to mention it here so that you could discuss about it together.

I never owned any Synology device, so I wouldn't know what needs to be mentioned in a Syno tutorial.

If you are both OK about the new version of the tutorial, I'll update it.