In my quest to improve rendering times with Cycles I managed to break my file (I think). Now, when I enter (or slide the cursor) an e.g. 12 value in the Samples box, I get the following message: bpy.context.scene.cycles.samples = 1 Can't edit driven number value, see graph editor for the driver setup.
Choosing a preset from Sampling Presets doesn't reset the sample value.
I've even tried to open the Python console and set it from there, but it still doesn't change the UI, nor the actual render. Consequently nothing (visible) renders with a sample of 1.
Any pointers on how to revert my rendering samples much appreciated.