Same problem, and what's worse the app crashes on macOS, with an error indicating that their are two sidebar toggle:NSToolbar 0x60000102e6d0 already contains an item with the identifier com.apple.SwiftUI.navigationSplitView.toggleSidebar. Duplicate items of this type are not allowed.; {
NSAssertFile = "NSToolbar.m";
NSAssertLine = 1609;
}