Hi, this issue has been going on since day 1 of our 1.17 realms. The server has been crashing, kicking everyone out and then rerolling back by 30mins after getting the "Connection: Timed Out" error. On our first day when exploring to find a place to settle down, the server crashed and rerolled once. We thought that it was just a one time thing, but it happened everyday. We contacted your customer service but there was no solution. The customer service only mentioned about our poor connection (which we do not have) and big animal farms or Redstone contraptions, which also don't make sense since we crashed even before building anything.

We finally figured out that the main cause might be when we explore or load new and possibly existing chunks. Because on the day we all got our elytra and flew around to explore, we crashed 4 times. On one of the crashes, only 1 person was flying and still managed to rollback the server. This only happens when you explore the overworld. Exploring in the end or nether did not crash the server. Please fix this asap as we cant explore anything without being paranoid for loss progress for the past 1-2 weeks. Thank you.