Rollout snapshot (October 3, 2026, 15:35 PDT): v6.7.3 reached Room 2 and the 4K Room 4. Rooms 1 and 3 remained on v6.7.2. The remaining deployment targets were replaced with cumulative v6.7.4, so not every room will run v6.7.3 separately. This is a dated snapshot; check the current lobby title and Live lobbies.

• Validates a converted chart's actual column count and recalculates its Mania star rating before admitting it to a pool.
• Fixes source Standard circle-size metadata being mistaken for the converted chart's key count. Black Rover (TV Size) and other wrongly classified 7K conversions can no longer enter the 4K pool under these safeguards.
• Requires independent conversion evidence matching the candidate's key mode and catalog revision. Missing, stale or inconsistent evidence falls back to native Mania maps.
• Locks admitted conversions to the matching key mode and disables switching to a different chart or ruleset on those playlist entries.
• Checks returned conversion settings and reported ratings. A mismatch blocks starting the entry, excludes it from further picks and schedules safe playlist rebuilding.

The reported Black Rover (TV Size) [Extreme] source chart had a Standard rating of 6.62337★. Its stored 3.07776★ Mania rating belonged to a 7K conversion, not 4K. The original classifier rounded the source circle-size value to infer keys; that value was not the converted chart's actual column count.

All eleven existing conversion candidates showed the same wrong-key classification. They are excluded from 4K selection under the new checks, not deleted from the catalog and not automatically moved into the 7K lobby. Both Mania pools still filled their 400-map selection limit using native charts at validation.

The online queue can expose the original Standard rating even when a Mania ruleset is selected. Admission therefore also requires the source-display rating to fit the room range. The recalculated Mania rating remains the actual difficulty check; the source rating is an additional conservative display guard. PoolRotater does not claim to rewrite lazer's rating display.

Verified converts remain Variety-only, capped at 30% of ordinary Variety picks when eligible candidates exist. Structural styles and Farm-only selection remain native-only. New rooms start on native Mania so conversion settings can be applied explicitly to later entries.

Passed 448 offline tests, four-room configuration checks, conversion-evidence integrity checks and compatibility checks. Production and expanding databases were not replaced or promoted. The update uses the existing 30-second empty-and-idle deployment gate; players are not removed to install it.

See Vetted Mania converts, How room updates work, and v6.7.4.