Individual Asset Merge Failure

When applying the "merged" property to each asset within a frame, the assets are not merged into separate images. Instead, the entire frame is merged into a single image.

Expected Behavior:
Each asset with the "merged" property should be merged individually and extracted as separate images.

Steps to Reproduce:
Place multiple assets inside a frame.
Apply the "merged" property to each asset.
Upon export, the entire frame is merged into one image.

Actual Result:
The entire frame is merged into a single image.

Expected Result:
Each asset should be merged individually and exported as separate images.