@MrMazda Have server-side changes been looked at so far (the entire stack from the DDoS protection to the actual tracker service)? To my mind, there has been sufficient evidence to indicate that none of the affected users have changed anything in their client.
I'm down to seeding barely 100 torrents down from approximately 16,000, and I'm seeing a steady uptick in the number of reseed requests since the start of the outage. If a fix is not found soon, I plan to stop seeding entirely for the time being.