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POLYMARKET DIGEST — 19 SEPTEMBER 2026

🔥 News & Announcements

ZEC markets (5m/15m) are intentionally hidden from UI — used for TWAP testing only; will be re-announced when re-enabled (confirmed by staff 0xdanzu).

Session Key API (POST /v1/session-signers/authorizations) returns 403 for valid Builder API keys — session keys are in limited beta, access is restricted (confirmed by staff tsmultra).

⚠️ Bugs & Issues

CLOB performance (critical, ongoing): Cancel/order latency severely degraded — cancel ACK delays up to 26 000ms, normal order RTT jumped from 50ms → 200ms+ even on colo. ~40% of fills were cancel-then-filled-anyway. Staff (skulldoom97, 0xdanzu) acknowledged; fix requires a deploy. Issue worsening for 21+ hours.

WebSocket disconnects (SERVER_CLOSE code=1013, "slow consumer"): PM sends event bursts faster than clients can consume → buffer fills → disconnect. Workaround: increase RCVBUF, use internal queue.

Cloudflare WAF / data-api v2: Specific combinations of condition IDs in GET /v2/resolutions?condition= return HTTP 403. Deterministic by content, not rate/IP. Forwarded to team.

Login bug: Email + TOTP flow returns "Request Cancelled" error.

Fee UI broken on multiple markets.

Limit orders with decimal prices require page reload to place; error appears otherwise.

PnL stats showing inconsistent values day-to-day with zero trades executed.

Position tab not accurately reflecting shares held/sold.

Leaderboard numbers reported as incorrect.

Page loading failures and excessive load times reported by multiple users.

Docs broken link: docs.polymarket.com/concepts/order-lifecycle returns 404.

Support response times averaging 1–2 months.

📋 Clarifications

Real Cartagena FC vs. Bogota FC (originally 2026-08-11): ~40 markets redirected to event col2-car-bog-2026-08-20 for resolution.

FK Auda Riga vs. Ogre United (originally 2026-08-03): ~50 markets redirected to event lva1-aud-ogr-2026-09-16 for resolution.

⚡ Disputes

"Rebate Gate" — select users reportedly received 80% taker fee rebates ~4 weeks ago (around Aug 19), creating structural disadvantage for others. User singlur reports taker fill rate dropped from 80% to ~zero overnight on the same date. Mod tsmultra threatened timeouts for users spreading this message, which itself drew community criticism.

XAU/USD resolution dispute: User shariful1000 disputes "Will XAU/USD dip to 4250 by Sep 14" resolution — same price level triggered YES on one market but NO on another; argues 1-minute candle low below 4250 should count as valid YES.

Platform health warning circulating in community, citing: private incentives to select participants, international Polymarket version being quietly sunset in favor of US version, CLOB unlikely to be fixed before next year, and Polymarket losing market share to Kalshi.
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