You may encounter little quirks while working with these mockups. Here's the list of the ones that I'm aware of. If you find something else, feel free to open an issue and describe your problem.

Sometimes certain details (especially tiny ones) can become blurry. A quick fix is to upscale said objects and nudge them out a bit. Always try doing quick exports periodically to discard any issues.

If anything, this could also be a limitation of raster smart objects. The best fix is just to keep experimenting until there’s a right amount of pixel balance between scale and position that Photoshop doesn’t dislike.

Different artworks don't behave the same with default settings, so don’t worry. You can easily change the intensity of the shading. Check the Shading chapter to learn how to tweak this.

This is a little workaround to compensate for any banding artifacts that can appear since the document works under 8 bits for a better compatibility & less file size.