Validator/ Full Note Kii Chain

[PHUOCHAU2403]

Hi Kii team 👋

Setting up a fresh full node on testnet_oro (oro_1336-1) and state sync is consistently failing. Need guidance.

Environment

• OS: Ubuntu 24.04.4 LTS
• VPS: 8 vCPU / 24 GB RAM / 200 GB NVMe (Contabo, EU Hub)
• Binary: kiichaind v7.2.0 (built from main, commit f632e7f)
• CometBFT: 0.38.19
• Moniker: sieusayza-kii-testnet
• Chain ID: oro_1336-1

What's failing

State sync runs, discovers snapshots, but light client verification times out against both official RPCs:

• https://rpc.uno.sentry.testnet.v3.kiivalidator.com
• https://rpc.dos.sentry.testnet.v3.kiivalidator.com

Over 15 minutes:

• Snapshots discovered: 27
• Snapshots rejected: 28
• Snapshots accepted: 0
• Light-client timeouts: 112

Sample error:
post failed: Post "https://rpc.uno...": context deadline exceeded (CometBFT light client has a hardcoded 5s provider timeout)

What I tried

1. Swapping primary/witness RPCs — same result
2. Increasing discovery_time + chunk_request_timeout to 60s (doesn't affect light client's 5s hard limit)
3. Local nginx caching proxy with keepalive/buffering-off in front of both RPCs — still 5s timeouts despite nginx returning 200 OK in ~200ms per request under manual curl
4. Tried kiichaind v4.0.0 (from the docs' join_oro.sh) — same state sync issue
5. Block sync from genesis is not possible: v7.2.0 panics in x/vm.InitGenesis with panic: invalid character 'e' looking for beginning of value against the genesis.json in testnets repo (genesis appears to be an older format)

Asks

1. Is there a snapshot tarball URL (pruned or archive) I can untar into ~/.kiichain/data?
2. Is there a more reliable RPC endpoint for state sync witness?
3. Or alternatively, a current genesis file compatible with v7.2.0 for cold block-sync?

Happy to share more logs. Thanks!