I detonated a nuclear charge. But, after that, the server started lagging: from time to time its TPS drops to 8 (or somewhere around a second, the north does not reproduce the tick at all). And this even happens when the explosion area is not loaded. Enrages.

Here's the video: https://rezon.host/HBM_Bug.mp4
Sorry for this ugly laggy video...

Server specifications: 16 GB DDR4, SSD disk, 3.4GHz processor (6 threads).

And logs...

Could you run a profiler? The log itself doesn't provide any details.

No problems
https://spark.lucko.me/ZJDloaw2P1

That's 1.12, please refer to #1039