Mainnet rewards payout delay

[david]

Summary of mainnet issue:

• After the LNL network restart the governance update to the reward payout delay was restored (you can see it https://api.token.vega.xyz/network/parameters)
• The updated parameter did not propagate to the rewards engine due to a bug
• Rewards are therefore operating on the delay set in the genesis file of 72h instead of 0
• We are back to the same problem as prior to the governance vote, see [Proposal] Set reward.staking.delegation.payoutDelay to 0s from current 72h - rerun

Severity:

• High — this does not put the network or funds at imminent risk however funds will be lost/rewards unpaid if it is not addressed.

We are exploring best potential courses of action and will keep you updated.

[barney]

Quick update, detail to follow after further discussion once a solution has been properly defined and selected:

We are looking at two types of potential action to make sure that no rewards are unpaid at the next network reset:

1. An on-chain workaround or new governance vote by the community that would resolve the problem ahead of the next code release which would fix the underlying bug
2. A hotifx to the current chain which resolves this issue directly with a new software release to the validators without requiring a network reset or other highly coordinated activity

We are confident at this stage that no rewards need to go unpaid. At worst some rewards will be paid out 3 days after the epoch ends instead of immediately while we await resolution.