opacity value stays as 0 in light mode on production build (works find in dev) Gatsby / MUI based project

[kirill-develops]

I have a Gatsby / MUI-based project running here that for some reason in light mode doesn't change the opacity:0 to opacity:1. It does work correctly in dark mode. The repo can be found here

I'm using mui-image and my component looks like this:

<Image
    src={data?.flags?.svg}
    alt={`${data?.name?.common} flag`}
    sx={{ aspectRatio: '7/4' }}
    loading="lazy"
    fit="cover"
/>

[narviii]

Same issue with next.js/MUI. If i change code and save(no page reload) it works fine, if I reload - opacity is zero.