Server Problem (not refreshing)

[PeterLux]

Hello together,

I've a problem with the blender plugin:
When I start blender (2.75) and start the rendering of a scene, evrything works fine, I get a finished rendering just like one would expact.
But when I try to start another rendering the renderprocess seems to start, but without any geometry and thus with no rendered image. Means that the rendering window pops up, the rendering is finished in less then a secound and the result ist an empty image.
I have to restart blender to be able to start another rendring (restarting the server doesn't work and is not necessary).
And it's the same with animations: The first frame renders as expacted but all the following frames will be saved as empty images, each one rendered in less then a secound.

The viewport rendering is not bothered by this problem!

Does anyone else have this Problem?

I'm using octanerender 2.23.2 serverversion .9.3

[J.C]

OSX server version sometimes hangs and you have to restart it.

Second thing is that I have to always restart it (server) after sleep. Is there something it behaves so after sleep?