Problem with styles and textures

See this for help with Photographic Styles and note the requirement to use High Efficiency when taking a photo --> Use Photographic Styles with your iPhone camera - Apple Support

The following is extracted from :- Use Photographic Styles with your iPhone camera - Apple Support (IN)

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Texture and grain are available on models that support Photographic Styles 3. If a photo was captured with texture, you can adjust it later in Photos on models that support Photographic Styles 2 and Photographic Styles 3 and have iOS 27 or later.

1. Open Camera  on your iPhone.
2. Tap  or swipe up from the camera modes at the bottom of the screen.
3. Tap Styles, then swipe left or right to preview the available styles.
4. Drag the Tone and Warmth sliders to control how strongly the style affects your photos. Or on models that support Photographic Styles 2 and Photographic Styles 3, tap Customize, then do any of the following:
   1. Adjust the tone and color: Drag your finger on .
   2. Control how strongly the style is applied: Drag the slider.
5. On models that support Photographic Styles 3, tap Texture, then do any of the following:
   1. Apply a texture: Choose a texture such as Soft Skin, Glow, or Film, then drag the slider to adjust the intensity.
   2. Add film grain: Tap Grain.
   3. Apply no texture: Choose Standard.
6. Tap  to return to the default value, or tap  to close the Style menu.

To reset or change the style you selected, follow the instructions above, then select Standard, or choose a different style.

After you take a photo, you can further refine the Photographic Style values in the Photos app. See Edit the Photographic Style of a photo.

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What format are you using, Apple ProRAW, HEIF or JPEG (most compatible)?

From Siri AI: