Rotating or flipping tiles in tiled doesn't work when using collisiondata and Matter physics

[hedgelot]

Version

• Phaser Version: 3.86.0

Description

I am using Phaser with Matter physics. I use tiled to create tilemaps and add collision data/boxes in this software. When flipping or rotating the tile in Tiled, Phaser gives an error.

Example Test Code

const map = this.game.make.tilemap({
    tileWidth: 16,
    tileHeight: 16,
    key: "MyMap"
});
map.addTilesetImage("tileset", "tileset", 16, 16);

const layer = map.createLayer(layer.name, ["tileset"]);
layer.setCollisionFromCollisionGroup();

this.matter.world.convertTilemapLayer(layer)

Additional Information

This code works fine when using a map without flipped tiles, it also works with flipped tiles that don't have collision data on them. But as soon you add a tile with collision data flipped (or rotated) it stops working.

A workaround is to add all tiles in each orientation in the tile editor, but I hope this issue can be solved in Phaser to keep tilesets smaller.