Hello,

First of all, thank you for this great piece of software. I find the amount of customization very cool.

I have some issues with Local Synchronization:
Currently, my gallery has 5 albums and 261 photos and about 10 videos (mp4). I upload everything via FTP to /galleries and I use Local synchronization. From what I've understood, when adding a new album, it's best to do the sync in 2 steps:
1. do a 'directories only' sync
2. then restrict the sync to the newly added album and do a 'directories and files' sync

- When I do step 1 in 'simulation' mode, the process never ends (I eventually get a Gateway error)
- When I do step 1 and unchecking 'simulation' mode, the same thing happens, the process never ends. But when I return to the sync page, I see that the new folder is in the list of Albums so It was correctly added to the DB

Then I do step 2 :
- In 'simulation' mode the page loads instantly: I get the summary of the images on the newly created album
- When I try again with 'simulation' mode unchecked, again the page hangs and I get a Gateway error. But if I check on the front-end, I see that all my images are present.

So in the end, the sync does its job correctly, but it always hangs, even with a small amount of files (the last sync I did was with a folder with 10 files). I had read that people with large galleries can have issues with sync hanging. But with a small gallery as mine, this should be much faster, no?

Also, I do not know if it is related, but on the dashboard, the total size is 3GB when in reality it's 10GB+ (each of the videos is between 200 MB and 1GB+)

I'm hosting piwigo on a shared hosting plan. I did not encounter any performance issues with any of the other applications I host on the same plan.

Thanks in advance for your help.

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Piwigo version: 2.9.3
PHP version: 7.0
MySQL version: 10.1.31-MariaDB-cll-lve
Plugins installed:
- CheckFilesIntegrity
- Crypto Captcha
- Exif View
- Force HTTPS
- gdThumb
- LanguageSwitch
- LocalFilesEditor
- OpenStreetMap
- UserAdvManager