https://katiekodes.com/salesforce-error-invalid-type-picklist-flow/
Workaround: Salesforce Flow Picklist-Related Invalid Type Error | Katie Kodes
Nov 6, 2019 - INVALID_TYPE_ON_FIELD_IN_RECORD
salesforce flowkatie kodesworkaroundpicklistrelated
https://blazor.radzen.com/picklist-empty
Blazor PickList - Empty PickList | Free UI Components by Radzen
This example demonstrates Blazor PickList with empty text and empty template.
ui componentsblazorpicklistemptyfree