onDisappear problem with developing VisionPro using SwiftUI

When I presented a button to determine whether to pop up or not, if I hit a popup, I presented a popup via.alert(isPresented: $isShowingAlert), and then onDisappear does not appear.

var body: some View {
        
        VStack(alignment: .tiltButtonGuide) {

            HStack(spacing: 17) {
                
                Button(action: {
                    tarotModel.randomTarot.toggle()
                }, label: {
                    Label("随机一张", systemImage: "gamecontroller")
                })
                
                // alert弹出会出现bug,导致onDisappear不执行
                Button(action: {
                    if tarotModel.selectedTarot == false {
                        isShowingAlert = true
//                        tarotModel.randomTarot.toggle()
//                        tarotModel.isShowingTarot.toggle()
                        return
                    }
                    tarotModel.isShowingTarot.toggle()
                    isShowingAlert = false
                }, label: {
                    Label("确定", systemImage: "heart.circle")
                })
                .alert(isPresented: $isShowingAlert) {
                    Alert(title: Text("温馨提示"),
                          message: Text("请选择一张卡牌"),
                          dismissButton: .default(Text("知道了")))
                }
                
                Button(action: {
                    tarotModel.resetTarot.toggle()
                }, label: {
                    Label("洗牌", systemImage: "arrow.triangle.2.circlepath")
                })
                
            }
            .toggleStyle(.button)
            .buttonStyle(.borderless)
            //.labelStyle(.iconOnly)
            .padding(12)
            .glassBackgroundEffect(in: .rect(cornerRadius: 50))
//            .alignmentGuide(.controlPanelGuide) { context in
//                context[HorizontalAlignment.center]
//            }
            .accessibilitySortPriority(2)
        }
        .onChange(of: tarotModel.isShowingTarot) { _, isShowing in
            Task {
                if isShowing {
                    await openImmersiveSpace(id: "ImmersiveSpace")
                } else {
                    await dismissImmersiveSpace()
                }
            }
        }
        .onDisappear() {
            tarotModel.selectedTarot = false
        }