The channel slider works only for a single channel image.

[LucaMarconato]

When adding two images, the channel slider (bottom of the interface) doesn't work on the second image; to fix one needs to first delete the first image.

To reproduce, run the code:

from spatialdata import SpatialData
from spatialdata.models import Image2DModel
from napari_spatialdata import Interactive
from numpy.random import default_rng

RNG = default_rng(0)
image0 = Image2DModel.parse(RNG.random((5, 100, 100)))
image1 = Image2DModel.parse(RNG.random((5, 100, 100)))

sdata = SpatialData.init_from_elements({'image0': image0, 'image1': image1})

Interactive(sdata)

and then:

1. add image0, the slider in the bottom of the interface works
2. add image1 (which is now in focus), the slide will not work
3. delete image0, the slider will work again, on image1.

[melonora]

so for me this does seem to work, I tested this by rendering image0 not visible and I still do see Image1 changing. However, for me the thumbnail of Image1 is not being updated while for Image0 it is. Might check together in person regarding this, but this could be a bug in napari core.

[LucaMarconato]

Thanks for checking! I'll add a tag "macos" 😅