"read too much or not enough" when parsing list of DU-elements

[drhumlen]

System.Text.Json.JsonException: The converter 'System.Text.Json.Serialization.JsonUnionConverter`1[KT.Takst.Domain+ForholdVedBygg]' read too much or not enough. Path: $[1] | LineNumber: 0 | BytePositionInLine: 24.

using these options:

    let serializerOptions =
        let rules =
            JsonUnionEncoding.InternalTag ||| JsonUnionEncoding.EraseSingleCaseUnions ||| JsonUnionEncoding.SuccintOption
            ||| JsonUnionEncoding.BareFieldlessTags

        let serializerOptions =
            JsonSerializerOptions(PropertyNamingPolicy = JsonNamingPolicy.CamelCase, DictionaryKeyPolicy = JsonNamingPolicy.CamelCase)
        serializerOptions.Converters.Add(JsonFSharpConverter(rules))

Given example:

type Color = Red | Blue | Green

JsonSerializer.Deserialize<Color list>("""[ "Red", "Blue"] """, serializerOptions)