There was a mistake in the dir being created. It must be

the backup temp area one. MDL-11912

Merged from MOODLE_19_STABLE

diff --git a/backup/backuplib.php b/backup/backuplib.php
index e49dac9ab3fd0ebf5c0c05fc08797a0efad70638..2b9aadc20e25551987c01f7efe62305d67ce2b49 100644 (file)
--- a/backup/backuplib.php
+++ b/backup/backuplib.php
@@ -2227,7 +2227,7 @@
                     $userid = $parts[1];
 
                     // Create group dir first
-                    $status = check_dir_exists($userinfo['basedir'] . '/' . $group, true);
+                    $status = check_dir_exists("$CFG->dataroot/temp/backup/$preferences->backup_unique_code/user_files/". $group, true);
                 }
                 
                 $status = $status && backup_copy_file($userinfo['basedir'] . '/' . $userinfo['userfolder'],