I'm sure you have. Good for you. I, too, have rendered out one animation with this tool. It was much more work than just, for example, putting the file in blender on the different machines and rendering a group of frames on each. The slices had lines in them. Horrible for animations! I looked around and finally came to answers, which took me two days to find.
The render managers that have performed best for me are the kind that give you the choice of slices or an image per node. This makes for a useful tool with troubleshooting as it is very straightforward.
I can appreciate the slicing for large images. Seems most appropriate. But for an animation is is not serving me well. I even saw a blurb about the software that stated it was a design decision that may not have been the best. Agreed.