POLYMARKET DIGEST — 20 SEPTEMBER 2026

⚠️ Bugs & Issues

Polymarket suffered a major multi-hour outage on September 19. The CLOB went down around 16:40 UTC, with widespread reports of orders not placing, not cancelling, and not appearing in the book. skulldoom97 (staff) put the platform into cancel-only mode at ~17:58 UTC and promised a 5-minute heads-up before re-enabling. Trading was restored at ~18:55 UTC per pmkeaton, but a second outage immediately followed, attributed by pmkeaton to a Polygon network incident (https://status.polygon.technology/incidents/01M2XMCZJ4EXFC5Q2AH7XQ0NDD). Trading resumed again around 20:10 UTC. tsmultra and iflexson (staff) confirmed the team was aware throughout.

pmkeaton and suhailkakar confirmed refunds will be issued for losses incurred during the outage. A user who bought before the outage and could not sell during it asked whether their market losses qualify — the answer was implicitly yes, per pmkeaton's statement.

Additional ongoing issues reported:
— PnL chart showing incorrect data with fake peaks/dips (multiple users, still unresolved)
— Positions/stats data stale; 0xdanzu confirmed stats are being normalized as a new data API rolls out
— Rewards page not loading fully (tuesday3329)
— Order fills appearing on-chain with ~20-minute delay during the incident (berth6833)
— Throttled taker orders filling into already-closed windows (mmmmmmmmmmmmmmmmmm_)
— API book endpoint (bids/asks sort order) not reliably sorted despite documentation claiming best-price-first; fargason_ advised not to rely on guaranteed ordering
— Obsidian tier status reportedly being granted to accounts with only ~200k weighted volume, far below the stated 10M threshold (votobias_12985, phoenyx69)

Community members and verrylowsharpe repeated a longstanding request for automatic order cancellation when the exchange goes down, noting that 5-hour maintenance notices do not account for all timezones. brka also called for better in-platform banners and notifications during outages, tagging the team directly.

Users noted the outage coincided with the 0-fee sports weekend (college football, soccer), with speculation that the volume spike caused the CLOB overload. shy_blue_rock mentioned the matching engine is being rewritten; ravdes21 linked a post from dev Josh Stevens apparently referencing the rewrite.

The LEC Summer Split 2026 MVP market resolved as "Other" despite Caliste winning the award — 0xdanzu confirmed this was a deployment mistake (wrong end date set) and that the market team will issue refunds.

🔥 News & Announcements

0-fee trading is active this weekend on sports markets (college football, NFL tomorrow, soccer). The Russia military action market was flagged by viniipaquete as potentially missing its no-fee flag.

⚡ Disputes

An ongoing "rebate gate" controversy continues to dominate the devs channel. Multiple users (lochnload2718, lebrawnjaymez, blunkoed, vilius.u) have been repeatedly posting disclaimers warning that select market makers have reportedly received rebates as high as 80%, with no public disclosure of eligibility criteria. iflexson asked them to stop, describing it as spam; users pushed back saying it is not spam. pmkeaton has not publicly addressed the substance of the rebate claims. A WSJ article linked by blunkoed (https://www.wsj.com/business/polymarkets-fraud-regulators-coplan-5f418ab0) appears related to regulatory/fraud scrutiny of Polymarket. A separate concern was raised about KYC-verified colocation in London receiving worse latency than non-KYC servers in Amsterdam (avataroflol).