Task started but not showed on GUI

[Frank]

Hi people,

our environment is Fog 1.2.0 with one central Fog and three storage repositories, all of them with ubuntu 12.
We realized that some tasks (upload,download) launched to clients are started on them, but it’s like central fog loose their control and they are not showed in GUI. These tasks ended and we see errors related to no nonexistence of such tank and for instance, in upload case, files are not moved from /images/dev to /images.

Have you notice something like this?
We have tried to remove task info from db because we thought it would be a data corruption, but it is still happening.

Regards.

Frank