Don't you mean ahead from 58414to 58463? You just can't jump 50 blocks ahead.
I built an instance of ckpool and connected a 1.15 TH/s miner to it. I mined 7 blocks in 8 hours. This was configured as a standalone miner, so it was not suitable as a mining pool with many users.
I identified a configuration problem that created difficulties at block 58414. I have pushed that problem back to block 58463.
The database support, ckdb, did not build effortlessly so I can't bring up multi-user support at the moment.
I mean, the code I am running treats some things differently after for block 58463 and before vs 58464 and after. Previously the limit was 58414, I had forgotten that, and it made a problem.