If editing one Photoshop product slot updates every copied slot, the slots may be instances of the same embedded Smart Object. Ordinary duplication can retain shared contents. When each slot needs different artwork, create an independent embedded copy deliberately. Layer position, layer name and a separate transform do not by themselves prove that the underlying contents are independent.
Check what the copy actually shares
Open Window > Layers and identify the Smart Object layers used for the layout. Preserve the master before changing the copies. Note whether the object is embedded or linked to an external file. Adobe's independent-copy instructions cited here concern embedded Smart Objects; do not assume that every external linked-file arrangement behaves identically.
A three-card product layout can contain three differently positioned layers yet show the same photograph after one source edit. That behavior is consistent with shared object contents. It does not mean the export randomly selected the wrong image. Inspect the source relationship before rebuilding the card composition.
Use the independent-copy command
Adobe distinguishes Layer > New > Layer Via Copy from Layer > Smart Objects > New Smart Object Via Copy. The former creates a copy that updates with the original contents; the latter creates an independent embedded copy. Choose according to the actual reuse intent.
Shared contents are useful when one approved logo should update consistently across several placements. Independent copies are useful when each placement needs a different product. Do not convert everything to pixels merely to force separation if you still need the object-based editing workflow. Keep layer names descriptive, but remember that naming alone changes no content relationship.
Compare the relationships safely
This is a reproducible test plan, not a tested template. On a duplicate document, start with one embedded Smart Object. Make one ordinary copy and one independent copy using the two menu routes. Edit a conspicuous small marker in the original object's contents and save that object document.
Return to the main layout and record which placements changed. Undo or remove the test marker afterward. The goal is to observe the content relationship while holding the source, transform and layout constant. If the result differs from expectations, verify that the edited object was the intended embedded object rather than a different linked asset.
Accept the final product layout
For a layout requiring different products, acceptance means each slot contains the intended product and modifying one slot's contents leaves the other products unchanged. Check both the editable master after reopening and the exported card. Compare labels, product shape and distinguishing details; a correct-looking thumbnail can conceal repeated artwork.
For deliberate shared assets, acceptance is the opposite: every required placement updates together. Record that intent so that a later editor does not mistake useful linkage for a defect. These commands belong to desktop Photoshop. Imagild may provide the approved photos, while Smart Object relationships are managed in the external layout file and are not an Imagild feature promised by this guide.