I was having a major headache recently with zp3 and I was excited to test out zp4 and get away from buggy ass zp3. However, once I started zp4 I realized it was about 5 times buggier than zp3. Crashes constantly, won't load, stalls, claims that an instance is running when not and pretty much can't do shit on it. Now, back to zp3 which is buggy as shit but at least i can run 20 threads on my dedi wahoo. Which version are you able to cope with if any?