can't sign in

[zetoichi]

Storage Explorer Version

1.46.0

Regression From

1.45.0

Architecture

arm64

Storage Explorer Build Number

20260827.4

Platform

macOS

OS Version

macOs Tahoe 26.5.1

Bug Description

i'm getting:

{
  "message": "\"Object reference not set to an instance of an object.\""
}

each time i try to sign-in...

Resource Types

No response

Authentication Method

None

Connection Type

None

Steps to Reproduce

1. Launch Storage explorer
2. Try to sign-in or re-authenticate (same error on both cases)

Actual Experience

can't sign in...

Expected Experience

No response

Additional Context

No response

[siromega]

Same here. MacOS Sequoia 15.7.9.

ETA: I deleted 1.46, downloaded and installed 1.45 and tried to login there and got the same error. Tried 1.44, same problem.

I don't know what version I was on before but I had to go all the way back to 1.42 to get it working again.

[awatertrevi]

Same here.

[frasche]

Log entry in my case:

Error : System.NullReferenceException: Object reference not set to an instance of an object.
at Microsoft.Identity.Client.Platforms.Features.RuntimeBroker.RuntimeBroker..ctor(CoreUIParent uiParent, ApplicationConfiguration appConfig, ILoggerAdapter logger)
at Microsoft.Identity.Client.Broker.BrokerExtension.<>c.b__3_0(CoreUIParent uiParent, ApplicationConfiguration appConfig, ILoggerAdapter logger)
at Microsoft.Identity.Client.PlatformsCommon.Shared.AbstractPlatformProxy.CreateBroker(ApplicationConfiguration appConfig, CoreUIParent uiParent)
at Microsoft.Identity.Client.ClientApplicationBase.GetAccountsFromBrokerAsync(String homeAccountIdFilter, ICacheSessionManager cacheSessionManager, CancellationToken cancellationToken)
at Microsoft.Identity.Client.ClientApplicationBase.GetAccountsInternalAsync(ApiIds apiId, String homeAccountIdFilter, CancellationToken cancellationToken)
at Microsoft.Identity.Client.ClientApplicationBase.GetAccountAsync(String accountId, CancellationToken cancellationToken)
at Microsoft.Identity.Client.ClientApplicationBase.GetAccountAsync(String accountId)
at Microsoft.Developer.IdentityService.AccountProvider.MsalNetworkServicesImpl.RemoveCredentialsForAccountAsync(Account account, CancellationToken cancellationToken).

[webgio]

Same here

[richardweaver]

Also have this issue, v1.46.0 on MacOS Tahoe 26.6.2. If this is useful, I did originally have an error reported about an incompatible version of the .NET v10 SDK. I installed the SDK and since then I've had this issue on Storage Explorer.

[0gust1]

Same here.
v1.46.0 on MacOS Tahoe 26.6.2.

{
  "name": null,
  "message": "{\"source\":{\"accountId\":\"XXXXXX\",\"tenantId\":\"XXXXXX\"},\"resourceId\":\"https://management.core.windows.net/\",\"code\":\"\",\"message\":\"\"}"
}

[LD8472]

Same here. The solution was to use an another Sign-in option.
Settings → Application → Sign-in
Change Sign-in from "Authentication Broker" to "Default Web Browser"
After that, it ran smoothly again.

[FlorentATo]

Same here. MacOS Sequoia 15.6:

Version: 1.46.0
AzCopy Version: 10.32.7

Platform: macOS
Architecture: arm64 
Build Number: 20260827.4 
Commit: c67698e 
Support ID: 719a0453-d5f9-482d-8329-48fbba0b0571 

Copyright © 2026 Microsoft. All rights reserved.

👏 for breaking a perfectly functional software...

[FlorentATo]

Same here. The solution was to use an another Sign-in option. Settings → Application → Sign-in Change Sign-in from "Authentication Broker" to "Default Web Browser" After that, it ran smoothly again.

I confirm, it worked! Thank you :)

[zetoichi]

Same here. The solution was to use an another Sign-in option. Settings → Application → Sign-in Change Sign-in from "Authentication Broker" to "Default Web Browser" After that, it ran smoothly again.

Thanks a lot!! Confirmed it works 👌🏼

[Quazmoz]

Same here on windows

[0xkevinr]

Also experiencing issues on Windows, attempted to change the sign-in options, but does not work. I had to go back all the way to v1.42.0 as Anthony F (@siromega)