Transparent block visible through surface gui?

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Trying to make blinds that cover the window but for some reason you can see the transparent block behind it is there any way to fix this?

Try to not use glass material for your window

it’s not glass tho it’s plastic

Try it with glass. Glass acts weirdly with liquids and particles, but if you aren’t using any of those then try that.

You could use a super thin part instead of a surface gui.

try changing the zIndex of the Surface GUI