I rolled a new Fed Science officer, and claimed my Rhode Island ship when I got to level 10. When I went in to customise it, choosing the window type seems to also change the material type. Of course, the workaround is easy - choose the windows, then go back and choose the material type, but I thought I should report this bug here, as the bug ticket I submitted in-game isn't showing up, so I'm not sure if it actually went through.
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