Litecoin.watch (2026-10-26). When Core has no fee estimate. Version: Core 0.21.5.8 · Windows regtest. https://litecoin.watch/articles/litecoin-core-has-no-fee-estimate-more-blocks-did-not-fix-our-test Method and data: https://litecoin.watch/uploads/research/fee-estimator-20261026/README.txt