Unexpected error during upgrade to v263 #3965
Description
If you are experiencing a crash
Logs pasted below from clean install attempt. Couldn't find events.
Describe the bug
While upgrading or clean installing version 263, the following error message appears, and FanControl fails to start. Going back to 262 works fine.
Is there a log.txt file next to FanControl.exe with recent date entries?
[V263] 3/22/2026 1:15:27 PM: Startup - System.ArgumentNullException: Value cannot be null. (Parameter 'value')
at Google.Protobuf.ProtoPreconditions.CheckNotNull[T](T value, String name)
at SensorMessage.set_Origin(String value)
at FanControl.IPC.SensorsRPCService.<>c.<GetSensors>b__7_0(ISensorSource s)
at System.Linq.Enumerable.IteratorSelectIterator`2.ToArrayNoPresizing()
at System.Linq.Enumerable.IteratorSelectIterator`2.ToArray()
at System.Linq.Enumerable.ToArray[TSource](IEnumerable`1 source)
at FanControl.IPC.SensorsRPCService.GetSensors(IComputerAccessLayer computerAccessLayer)
at FanControl.IPC.SensorsRPCService.ComputerAccessLayer_Initialized()
at FanControl.Domain.ComputerAccessLayer.Initialize()
at FanControl.Bootstrap.Startup(StartupEventArgs eventArgs)
[V263] 3/22/2026 13:15:29: Dispose - System.NullReferenceException: Object reference not set to an instance of an object.
at FanControl.ViewModels.MainWindowViewModel.Dispose()
at Autofac.Core.Disposer.Dispose(Boolean disposing)
at Autofac.Util.Disposable.Dispose()
at Autofac.Core.Lifetime.LifetimeScope.Dispose(Boolean disposing)
at Autofac.Core.Lifetime.LifetimeScope.Dispose(Boolean disposing)
at Autofac.Util.Disposable.Dispose()
at Autofac.Core.Container.Dispose(Boolean disposing)
at Autofac.Util.Disposable.Dispose()
at FanControl.Bootstrap.Dispose()
Relevant hardware specs and setup
Windows 10
Ryzen 5 5600X3D
RTX5070
MSI Tomahawk B550 motherboard