Multiple-bed number decals float/collide/obscure other mesh

[legoadk]

Description of the bug

When there is more than one print bed in a project (using the multiple beds feature), an extra decal is added to each bed to indicate bed number.

This decal is not positioned directly on the bed; it "floats" above the bed, resulting in two issues:

• In the 3D editor view, the decal appears as though it floats and may intersect with objects:
  

• In the Preview view, the decal not only floats as above, but also culls the preview mesh behind it; even though it should be transparent:

  View from above:
  

  View from below:
  

Project file & How to reproduce

rc_crawler_whoops.zip

Checklist of files included above

• Project file
• Screenshot

Version of PrusaSlicer

Version 2.9.0

Operating system

Windows 11 - 23H2 (OS Build 22631.4602)

Printer model

Original Prusa MINI+ (BondTech Extruder)

[neophyl]

Duplicate of #13814 see comment #13814 (comment)

[Jan-Soustruznik]

cloesed as duplicate of #13814