Lucid's auto-fee calculation under-estimates the publish-refs tx by
~5K lovelace on Vector L2 mainnet (observed: required 372,658, lucid
computed 367,197 → ogmios rejected with code 3122 InsufficientFee).
Bumping the floor to 500K guarantees lucid pays enough. Cost: 0.13 AP3X
overhead, one-shot. Doesn't affect ongoing script-spending txs (those
have their own setMinFee already at 200K, unchanged).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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