Duplicate snapin task and error deploying

[bveiga]

hi,
i´m running version 2353,when i create a task for a computer that have a snapin assigned, the snapin task create two tasks for the snapin and the snapin is not deployed for the computer, im running Ubuntu 12.04, can you help me please?
the snapin is a .cmd file with 340 kb.
after checking the error log i´ve got this message:

[Wed Oct 01 14:31:10 2014] [error] [client 10.7.107.11] PHP Warning: Invalid argument supplied for foreach() in /var/www/fog/lib/fog/FOGBase.class.php on line 409, referer: [url]http://10.0.16.133/fog/management/index.php?node=tasks&sub=active-snapins[/url]

best regards and sorry for my bad english
bruno veiga