after i execeute in python shell command:

hou.node('/out/mantra1').render()

Houdini stops working and lockup.
Sometimes after i shutdown Houdini via taskmanager, open mantra window and i can see render process.
If i try render render->startrender->mantra1, all works fine.

Try H10.249.5 and 10.295(apprentice), win xp32
Firewall and etc process disbaled.

On linux all works fine.

Any solution plz!