Block#726859 of calibration testnet is empty

[rtj599]

this block is empty on calibration testnet:
https://calibration.filscout.com/en/tipset/height/726859

Why it happened and could it happen on mainnet?

[wolfduan]

github

[rtj599]

#654

[rjan90]

Hey @rtj599! Yes, the mainnet can also have "null rounds" - i.e periods of time where there are no block produced. On the mainnet these occur very infrequently, and usually can only be seen during network upgrades with heavier migrations.

[rtj599]

got it, thanks!