Hi Eddo,
I’ve responded to you privately about this but so that we can help others in the Creative Cow community who may encounter this issue, here’s a description of the problem and the solution:
• Problem:
a paint layer, used as a production foundry layer in the particle system filter within RED was unexpectedly being clipped horizontally and did not span the full size of the comp
Solution:
• the paint filter needed to have a media track in order to work as a Production Boundary layer
• first create a new layer / track, then nest the paint track onto the face of this layer. Then use the new layer as the Production Boundary.
Cheers,
Peter.