[Bug] Layouts Editor: Structure mirroring (Mirror X) causes visual resets and data loss (Crafters/Item Frames)

[Imagenum]

Hello! I am really enjoying building with the Layouts Editor, but I’ve encountered a bug regarding how mirrored structures are saved and rendered.

The Issue: When I place a saved structure multiple times into a Layout Template and apply Mirror X to some instances, two things happen:

Data Loss: Specific blocks (like Crafters) do not mirror their orientation correctly, and entities (like Item Frames) disappear entirely in the final output.

Visual Reset: When I save, exit, and re-open the template to edit it again, the viewport "forgets" the visual mirroring of those instances. They appear un-mirrored.

Workaround: To fix the visual glitch upon re-opening, I currently have to manually toggle the "Mirror X" option Off and then On again for every single instance to make them render correctly.

Steps to Reproduce:

Save a structure containing direction-dependent blocks (e.g., Crafters) and entities (Item Frames).

Open the Layouts Editor and add this structure to a template.

Duplicate the structure and check Mirror X on the new instance.

Save and Place the layout (observe missing frames/wrong rotation).

Re-open the Layouts Editor for that template.

Result: The mirrored instance looks like the original (un-mirrored) until the setting is toggled again.

Expected Behavior: Mirrored instances should retain their visual state when re-opening the editor, and blocks/entities should correctly reflect the mirrored orientation in the world.

Thanks for looking into this!

[m-brisch]

Thanks for the feedback! I'll get the bugs created so the team can take a look.