Automated Backups Fail If Include Users is Selected

Hello,

I have been struggling with the automated backups for a few weeks.

Automated Backups and Manual Backups were successfully completing before creating and enrolling users.

There are only 4 courses 3 of which are Quiz only and 200 users.

If I select "Include Users" backups fail. Backups also fail if I select only "Include Users".

I tried calling  "php ...\wwwroot\admin\cli\automated_backups.php" via powershell (times out after 1 hour), backup was started and hanged after a minute or so...

Folders and Log files are being created under moodledata\temp\backup.

There are no errors in PHP Error Log.

Any help will be appreciated.

Configuration:

• Moodle 3.0.2+
• Azure Web Apps
• Azure SQLDatabase
• PHP 5.6

Debug Log:

[22-Jan-2016 19:59:03 Europe/Istanbul] instantiating backup controller e8b1dad47ec2598af7fb687e57abc479
[22-Jan-2016 19:59:03 Europe/Istanbul] setting controller status to 100
[22-Jan-2016 19:59:04 Europe/Istanbul] loading controller plan
[22-Jan-2016 19:59:13 Europe/Istanbul] setting controller status to 300
[22-Jan-2016 19:59:13 Europe/Istanbul] applying plan defaults
[22-Jan-2016 19:59:13 Europe/Istanbul] setting controller status to 400
[22-Jan-2016 19:59:13 Europe/Istanbul] setting file inclusion to 1
[22-Jan-2016 19:59:13 Europe/Istanbul] checking plan security
[22-Jan-2016 19:59:13 Europe/Istanbul] setting controller status to 500
[22-Jan-2016 19:59:13 Europe/Istanbul] checking plan security
[22-Jan-2016 19:59:15 Europe/Istanbul] checking plan security
[22-Jan-2016 19:59:15 Europe/Istanbul] checking plan security
[22-Jan-2016 19:59:15 Europe/Istanbul] saving controller to db
[22-Jan-2016 19:59:15 Europe/Istanbul] calculating controller checksum 0a311e2aaec874b62d63676dbc33a82f
[22-Jan-2016 19:59:29 Europe/Istanbul] loading controller from db
[22-Jan-2016 19:59:29 Europe/Istanbul] checking plan security
[22-Jan-2016 19:59:31 Europe/Istanbul] checking plan security
[22-Jan-2016 19:59:31 Europe/Istanbul] setting controller status to 700
[22-Jan-2016 19:59:31 Europe/Istanbul] saving controller to db
[22-Jan-2016 19:59:31 Europe/Istanbul] calculating controller checksum 697adfce460ce258f51f21cc866437e8
[22-Jan-2016 19:59:36 Europe/Istanbul] loading controller from db
[22-Jan-2016 19:59:36 Europe/Istanbul] setting controller status to 800

Many Thanks