Aura Hyperia struggled with RPs. Its main RP, which was incredibly active at one point, had died off not long before I got there. Right in the middle of the action, too, so I never got to find out how things turned out.
Mara tried starting a new, point-based RP a couple months after I arrived. The Imperial Council (which I was not yet a part of) wanted to incorporate a payment system to be at the core of the RP, where doing work in the region translated to RP advancements. However, the system was complicated, hard to organize, and tended to favor certain members. For example, my Inquisitor's salary gave me 70 credits a week, with an additional 15 for every case I closed; that's not including my Captain's pay in the Hyperian Guard. In comparison, Taulover's Recruitment Officer's salary was somewhere around 25 credits, while IC members made closer to 100 credits. Ironically, out of all Imperial Service departments, the RPers Guild had the lowest salary. Needless to say, this system barely lasted a month before we all were fed up with it; even the people it favored wanted to scrap it.
The third attempt at a regional RP was a combination of the last two, and was quite successful until the region was wrecked.
@Aragonn can tell you all about the fun we were about to have when it ended. It was very story driven, allowing new members to arise from either of two balanced factions or just start fresh. Those who arose from a faction could start off larger and more advanced, but had to maintain similarities with their parent faction. Those starting fresh had to be smaller and less advanced, but had no such cultural restrictions. The payment system was reimplemented, but the weekly salaries now had a relatively small impact on RP advancement. Most of your civilization's money came from how many sectors of space you controlled, and so encouraged attempts at expansion. Every time you added a character, you would recieve a set amount of credits, but from then on you had to pay your characters (if they worked for the gov't) from your civilization's coffers; this encouraged individual character development without limiting the number of characters someone could introduce. This RP was complex without being overcomplicated, and had great potential to be a success.
Various people attempted to start smaller RPs during my time there, but none of them got off the ground. One of them didn't get enough interest, but at least one other had the creator CTE before it got going. It's a problem that will persist in any region.