So I played on this planet for a few hours now as a gleba replacement and I see two problems with this planet.
The first one, not a single gleba seed for the two gleba resources. I had to cheat a few in to get a gleba economy going on this planet.
After that I noticed the second problem. apparently the wrong pollution type is set on this planet meaning that the pentapods never actually attack because they dont get the spores to trigger them.