Was told by ARK that this would be fixed with the next patch.
Patch is here, cluster is still bugged. It's already a huge pain to try to track down someone with enough NP AND Pharmatech to install the cluster into an implant in the first place. To do so only to find out that "it's bugged, sorry you wasted your time." Is beyond annoying. How hard can it be to fix whatever problem it is that keeps this cluster from being put into an implant?
When is this cluster going to be fixed, if at all?