Hello,
In 2.3.0, there's a bug TileMapImporter at line 187:
int offset = (staggered && ((y % 2) == 0)) ? 0 : 1;
For non-staggered maps, the offset is always 1, resulting in a tile map being rendered off by one tile length, and also crashing when the resolution of the tile map is divisible by the chunk size (eg. 256).
Best,
Jacek