Application crashes (EXC_CRASH (SIGABRT)) when displaying an animation with state machine in SwiftUI

  "exception" : {"codes":"0x0000000000000000, 0x0000000000000000","rawCodes":[0,0],"type":"EXC_CRASH","signal":"SIGABRT"},
  "termination" : {"flags":0,"code":6,"namespace":"SIGNAL","indicator":"Abort trap: 6","byProc":"Application","byPid":1045},
  "asi" : {"libsystem_c.dylib":["abort() called"]},
  "exceptionReason" : {"arguments":["-[__NSArrayM insertObject:atIndex:]"],"format_string":"*** %s: object cannot be nil","name":"NSInvalidArgumentException","type":"objc-exception","composed_message":"*** -[__NSArrayM insertObject:atIndex:]: object cannot be nil","class":"NSException"},
  "extMods" : {"caller":{"thread_create":0,"thread_set_state":0,"task_for_pid":0},"system":{"thread_create":0,"thread_set_state":0,"task_for_pid":0},"targeted":{"thread_create":0,"thread_set_state":0,"task_for_pid":0},"warnings":0},
  "lastExceptionBacktrace" : [
{"imageOffset":978358,"symbol":"__exceptionPreprocess","symbolLocation":226,"imageIndex":9},
{"imageOffset":81565,"symbol":"objc_exception_throw","symbolLocation":48,"imageIndex":7},
{"imageOffset":123841,"symbol":"-[__NSArrayM insertObject:atIndex:]","symbolLocation":1762,"imageIndex":9},
{"imageOffset":35776,"symbol":"-[RiveStateMachineInstance stateChanges]","symbolLocation":178,"imageIndex":1},

struct ContentView: View {
    @EnvironmentObject var appState: AppState
    
    let property1 = false
    
    let min = 1.0
    let max = 3.0
    @State private var property2 = 1.0
    
    @State var timer = Timer.publish(every: 60,  tolerance: 1, on: .main, in: .common).autoconnect()
    
    @StateObject var riveViewModel = RiveViewModel(
        fileName: "animation",
        stateMachineName: "Default State Machine"
    )
    
    var body: some View {
        VStack {
            if appState.showAnimation {
                riveViewModel.view()
                    .backgroundStyle(.clear)
            }
        }
        .onAppear(perform: {
            riveViewModel.setInput("Property1", value: property1)
            riveViewModel.setInput("Property2", value: property2)
            riveViewModel.setInput("Property3", value: false)
        })
        .onHover { hover in
            if (hover) {
                riveViewModel.setInput("Property3", value: true)
                property2 = min
            }
            else {
                riveViewModel.setInput("Property3", value: false)
            }
        }
        .onReceive(timer) { value in
            if property2 < max {
                property2 += 1
            }
        }
        .onChange(of: property2) {
            riveViewModel.setInput("Property2", value: property2)
        }
    }
}