View disappears when cursor hovers/crosses the color map bar

[elevans]

When the cursor crosses or hovers over the color map bar the data in view disappears. Changing the LUTs or the values of the display range have no effect. Resizing the window in order to (naively) force a re-draw of the image view has no effect.

I'm using the following system:
sciview version: 0.4.1 built from main
OS: Ubuntu 24.04 LTS
CPU: i7-1185G7
GPU: Intel Iris Xe Graphics

Here's a short gif of the behavior:

[kephale]

oh interesting! i did notice a change when mousing over the colormap, but for me it didn't cause the volume to disappear but actually to just update to the currently selected texture.

@skalarproduktraum i think there were some recent optimizations in the TF editor. can they cause this?

[skalarproduktraum]

This is already being addressed in scenerygraphics/scenery#759

Once this is merged, we can make a new scenery release and fix this issue.