EasyRPG display incorrectly the Panorama with this setup:
- Use of a custom resolution (416x240) with the FakeResolution flag (the problem disappears without the flag)
- A map of 23x12 using a Panorama of the same size than the map (RPG Maker even display the map)
On EasyRPG:

Here is a project isolating the bug:
test_map_easyrpg_report_2.zip