Lack of Diagnostic Information when Bug present in Upstream Provider

[zbuchheit]

What happened?

When an upstream provider has a bug that triggers an inconsistent result of apply error, our downstream providers displays this behavior as a spurious diff without any error or diagnostics. I would expect the behavior to display a log or show what is causing the spurious diff.

Example

Example Error

2024-09-11T17:09:09.291-0700 [ERROR] vertex "mist_device_gateway.gateway_one" error: Provider produced inconsistent result after apply
╷
│ Error: Provider produced inconsistent result after apply
│ 
│ When applying changes to mist_device_gateway.gateway_one, provider
│ "provider[\"registry.terraform.io/juniper/mist\"]" produced an unexpected new value:
│ .additional_config_cmds: was cty.ListValEmpty(cty.String), but now null.
│ 
│ This is a bug in the provider, which should be reported in the provider's own issue
│ tracker.

When I translate the code to pulumi in a bridged provider instead of an error I get a spurious diff and doesn't appear in the logs even when TF_LOG=debug is used.

Output of pulumi about

N/A

Additional context

I think the behavior itself is actually acceptable in that it doesn't throw an error and is an upstream bug that needs to be fixed, but I would expect a diagnostic log to show up to help troubleshoot this or some sort of warning.

Currently it is very difficult to figure out what is causing the spurious diff if the resource has a complex schema, whereas in TF the error points you to the problem immediately

Contributing

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[guineveresaenger]

Thank you for filing this bug. I've added kind/enhancement as well since this is a subcategory of inconsistencies in diff display that we may have a better fix for soon.

cc @iwahbe

[zbuchheit]

If I can be of any help to provide logs etc, just let me know. Thanks! 😄