Looks like chain is stuck on block 54554, it might never reach 56000.
Devs please look into this.
I am checking, DIFF changed up so quickly from 0.5 to 100, and the block stops at 54554.
There are 67 blocks received in the last 1 hours (30 expected). Then, DIFF auto adjust to 119.
We must wait until the miner found the block.