Confirmed, and it's a data problem rather than a drawing problem.

Every map carries a little block of minimap numbers in the game files — a centre point and a zoom level — and the game uses those to convert your world position into a dot on the minimap picture. When we imported the Free Market rooms, the importer threw that whole block away (it was written to skip the minimap because we didn't need the picture, and it took the numbers with it).

So for Free Market <1> the game had no idea where the map's centre was and fell back to a generic placeholder. The real centre for that room is 438; the placeholder is 1338. That 900-unit error works out to about 56 pixels of drift on a minimap that is only 88 pixels wide — in other words the dot gets shoved most of the way across the map and then pinned to the edge, which is exactly what you saw.

52 maps are affected: all 22 Free Market rooms, the Free Market entrances, and the Sharenian guild-quest towers. I'm fixing the importer to keep the numbers, re-importing those 52 maps, and rebuilding the map data. I'm also adding a guard so that if the numbers are ever missing again the game shows the small minimap bar instead of drawing dots it can't place — silently guessing is what let this hide for so long.

Confirmed, and it's a missing-data bug rather than a maths bug. Free Market room maps lost their minimap metadata when the map bundles were built — map_910000001 in maps-9.json has no `miniMap` block, even though v83 does. Without it the game falls back to placeholder coordinates (centerX 1338, centerY 635), so your dot is drawn about 68/88ths of the way across the canvas when it should be about 12/88ths — exactly the right-hand drift you photographed. No code change can fix this: the correct numbers only exist in the map data. 52 maps are affected — Free Market rooms 910000001-910000022, the FM entrances 910060000 / 910120000 / 910220000 / 910310000 / 912030000, all of Kerning PQ (920010000-920011200) and all of Ludibrium PQ (922010000-922011100). Fix: unpack the bundles, re-extract the miniMap node (canvas width/height, width, height, centerX, centerY, mag) for those 52 ids from the v83 Map.wz, and rebuild the bundles. For FM<1> the authentic values are canvas 88×64, width 1414, height 1026, centerX 438, centerY 716, mag 4.

Fixed — the numbers are back, pulled straight out of the original v83 game files.

Every map carries a small block of minimap data: a centre point and a zoom level. The game uses those to turn your world position into a dot on the picture. When the Free Market rooms were imported that block was thrown away — the importer had been told to skip the minimap because we didn't need the PICTURE, and it took the numbers with it. The game then fell back to a generic placeholder centre.

Free Market <1>'s real centre is 438; the placeholder was 1338. That 900-unit gap is 56 pixels of drift on a minimap only 88 pixels wide, so the dot got shoved most of the way across and pinned to the edge — exactly what you saw.

52 maps were affected: all the Free Market rooms and entrances, plus the Sharenian guild-quest towers. I wrote a deliberately narrow tool that reads the original files and writes back only those four numbers, touching nothing else. It does NOT re-run the full map importer, which would have quietly replaced authentic monster spawns with a later version's.