Nautilus thumbnails dont't work after update

[Otacílio]

Dears

After a update my nautilus don't shows the thumbnails for .pdf, jpg,
png, etc. The CPU usage gets up to 100% like if nautilus is waiting by
another process but the thumbnails dont shows. Someone cant tell me who
is responsible to generate the thumbnails to nautilus? With this I cant
try reinstall this port.

Thanks a lot
-Otacílio