[BUG] Add-PnPFieldToContentType throws error 'Column 'XXX' does not exist. It may have been deleted by another user.'

[HWielenDHS]

I have created different site columns that have to be added to contenttypes in the document libraries of existing SharePoint subsites.

I'm trying to use a PnP PowerShell script for this with the cmdlet 'Add-PnPFieldToContentType'. But whatever I try I always get the error message: 'Column 'XXX' does not exist. It may have been deleted by another user.'

I'm using a Windows 11 PC with PowerShell 7.4.6 en tried different versions of the PnP.PowerShell module up to the most recent version '2.99.90 nightly'.

In my script I first check if the contenttype is available using an 'If'-statement with: $contentType = Get-PnPContentType -List $libraryName | Where-Object { $_.Name -eq $contentTypeName }

Secondly I check if the column is available in the document library using using an 'If'-statement with: $column = Get-PnPField -List $libraryName | Where-Object { $_.InternalName -eq $columnName }

When everything checks out I use the following code to add the column to the contenttype: Add-PnPFieldToContentType -Field $column.InternalName -ContentType $contentType.Name

I have different types of columns: Number, Line of text and Taxonomy but for all of them I get the same error.
For the '-Field' parameter of the Add-PnPFieldToContentType cmdlet I used the properties: 'Title', 'InternalName', 'Id' and the object itself but it makes no difference.

I can add these columns to the contenttype manually in the SharePoint document libraries without any problems.

What am I missing?