Invoke-PnPSiteScript does not add List Columns to existing list

[jh-sigmadx]

I provisioned a Site and Lists from a Site Script.

I then amended the Site Script to add another field to one of the lists.

I then ran the Invoke-PnPSiteScript again, expecting the new column to be created.

It was not.

The documentation here:
https://learn.microsoft.com/en-us/sharepoint/dev/declarative-customization/site-design-overview

Clearly states:
"Site scripts can be run again on the same site after provisioning. Site scripts are non-destructive, so when they run again, they ensure that the site matches the configuration in the script.

For example, if the site already has a list with the same name that the site script is creating, the site script will only add missing fields to the existing list."

The Create List Step outputted:
ErrorCode : 0
Outcome : 0
OutcomeText :
Target : ########## (redacted)
TargetId : 92509bd0-1a58-4e7f-b20c-3af7e3ab6abe
Title : Create or update list "Contacts"

• I notice that the step is specifically named "Create or Update list..."

The Output of the SiteScript Step for adding the additional field looks like this:

ErrorCode : 0
Outcome : 0
OutcomeText :
Target :
TargetId :
Title : Add list column "TESTAddColumn"

Notice that NO error was given, but also that the "Outcome" = 0.
Again, The Column was NOT created in the list

[jh-sigmadx]

So, in the last week, it would seem this has changed yet again,

When I run my script now, I get the output:
ErrorCode : -2130575342
Outcome : 2
OutcomeText : List with name Contacts already exists.
Target :
TargetId :
Title : Create or update list "Contacts"

And the Create Column steps are NOT even executed..

What's going on?

Powershell Version: 7.4.4
PnP version: 2.12.0