Root offset: 127, length: 2985
Tile data offset: 3255

Directory has 1016 entries

Testing z=7 tile lookups:
z  x  y  | TileID | Match Index | Match TileID | Run | In Range?
---------|--------|-------------|--------------|-----|----------
7 58 59 |   8158 |           5 |          523 | 26243 | YES
7 58 60 |   8203 |           5 |          523 | 26243 | YES
7 59 59 |   8159 |           5 |          523 | 26243 | YES
7 59 60 |   8202 |           5 |          523 | 26243 | YES

If all 4 tiles match the SAME index, that's the bug!
They should match DIFFERENT indices.