SwiftUI: Cannot infer contextual base in reference to member

I wrote an extension for SwiftUI Font which introduces a couple of custom fonts.

extension Font {
    static let solDisplay: Font = .custom("Gilroy", size: 36)
    static let solHeadline: Font = .custom("Gilroy", size: 24)
}

Now for some reason there is the following error appears during the build process: Cannot infer contextual base in reference to member 'heavy'. Interestingly this error was found by someone else while doing a Pull Request - I did not notice any of these errors locally, but it appears to happen to only some. Currently 2 out of 4 people in our team have the errors where the other ones don't.

struct AssetsDemoPage: View {
    let fonts: [(String, Font)] = [
        ("Display - Heavy", .solDisplay.weight(.heavy)),   // Error Happening here
        ("Display - Light", .solDisplay),                  // No error here!
        ("Headline - Heavy", .solHeadline.weight(.heavy)), // Error Happening here
        ("Headline - Light", .solHeadline),                // No error here!
    ]

    var body: some View {
        NavigationView {
            List {
                Section(header: Text("Fonts")) {
                    ForEach(fonts, id: \.0) { name, font in
                        Text(name)
                            .font(font)
                    }
                }
            }
            .navigationBarTitle(Text("Assets"), displayMode: .inline)
        }
    }
}