web27

hi,

i have the same problem… ??
only empty zip files

here my environment:
apache 2.2.15-53
php-5.4.32-1
WP 4.7
Simply Static 1.8

https://www.directupload.net/file/d/4570/nnnqrjul_png.htm
https://www.directupload.net/file/d/4570/l5ix87fm_png.htm
https://www.directupload.net/file/d/4570/tmy7mghj_png.htm
https://www.directupload.net/file/d/4570/4952xpaq_png.htm

Apache Log:

1.2.3.4- - [15/Dec/2016:08:20:30 +0100] "POST /goerres/wp-admin/admin-ajax.php HTTP/1.1" 200 275 "https://server.local/goerres/wp-admin/admin.php?page=simply-static" "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.2840.99 Safari/537.36"
1.2.3.4- - [15/Dec/2016:08:20:30 +0100] "POST /goerres/wp-admin/admin-ajax.php HTTP/1.1" 200 383 "https://server.local/goerres/wp-admin/admin.php?page=simply-static" "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.2840.99 Safari/537.36"
1.2.3.4- - [15/Dec/2016:08:20:35 +0100] "POST /goerres/wp-admin/admin-ajax.php HTTP/1.1" 200 388 "https://server.local/goerres/wp-admin/admin.php?page=simply-static" "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.2840.99 Safari/537.36"
1.2.3.4- - [15/Dec/2016:08:20:36 +0100] "POST /goerres/wp-admin/admin-ajax.php HTTP/1.1" 200 654 "https://server.local/goerres/wp-admin/admin.php?page=simply-static" "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.2840.99 Safari/537.36"
1.2.3.4- - [15/Dec/2016:08:20:36 +0100] "POST /goerres/wp-admin/admin-ajax.php HTTP/1.1" 200 734 "https://server.local/goerres/wp-admin/admin.php?page=simply-static" "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.2840.99 Safari/537.36"
1.2.3.4- - [15/Dec/2016:08:20:37 +0100] "POST /goerres/wp-admin/admin-ajax.php HTTP/1.1" 200 828 "https://server.local/goerres/wp-admin/admin.php?page=simply-static" "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.2840.99 Safari/537.36"
1.2.3.4- - [15/Dec/2016:08:20:37 +0100] "POST /goerres/wp-admin/admin-ajax.php HTTP/1.1" 200 5740 "https://server.local/goerres/wp-admin/admin.php?page=simply-static" "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.2840.99 Safari/537.36"
1.2.3.4- - [15/Dec/2016:08:20:42 +0100] "POST /goerres/wp-admin/admin-ajax.php HTTP/1.1" 200 47 "https://server.local/goerres/wp-admin/admin.php?page=simply-static_diagnostics" "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.2840.99 Safari/537.36"
1.2.3.4- - [15/Dec/2016:08:20:43 +0100] "GET /goerres/wp-admin/admin.php?simply-static_zip_download=simply-static-1-1481786430-meister.zip HTTP/1.1" 200 22 "https://server.local/goerres/wp-admin/admin.php?page=simply-static" "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.2840.99 Safari/537.36"

tmp files:

[root@srv tmp]# ls -l /tmp/tmp
total 8
drwxrwxrwx 2 apache apache 4096 Dec 15 08:20 simply-static-1-1481786558-meister
-rw-r–r– 1 apache apache 22 Dec 15 08:20 simply-static-1-1481786558-meister.zip

[root@srv tmp]# ls -l /tmp/tmp/simply-static-1-1481786558-meister
total 0

very thx