I am reporting a severe rendering/cache bug. When importing images, the canvas displays incorrect artifacts that DO NOT exist in the original files. Even on the M4 iPad Pro, the app fails to refresh the visual display correctly.

The Evidence (Referencing Attached Screenshots):

Visual Discrepancy: My "Layers Panel" shows Object 3 is on the very top, but on the Canvas, it is incorrectly covered by "ghosting" pixels from Object 1.

Not a File Issue: These artifacts are NOT part of my images. They are UI glitches created by the app's rendering engine.

Critical Performance Issue:

Refresh Delay: It takes several minutes (3-5+ mins) for the canvas to finally refresh and show the correct layer order.

Frequency: This happens every time I import multiple files in a row.

Expectation: The M4 chip should handle image imports instantly. The current rendering engine is broken and makes professional work impossible. Please fix the cache refresh logic.