JSON deserialize error with `Umbraco.Cms.Core.RichTextEditorValue`

[timeverts]

Hi,

Love this plugin btw! Thanks for all your work.

I'm doing a reindex on an Umbraco 13.1.1 website and while reindexing, the following exception is being thrown in the background console:

 Could not parse rich text editor value, see exception for details.
Newtonsoft.Json.JsonSerializationException: Cannot deserialize the current JSON array (e.g. [1,2,3]) into type 'Umbraco.Cms.Core.RichTextEditorValue' because the type requires a JSON object (e.g. {"name":"value"}) to deserialize correctly.
To fix this error either change the JSON to a JSON object (e.g. {"name":"value"}) or change the deserialized type to an array or a type that implements a collection interface (e.g. ICollection, IList) like List<T> that can be deserialized from a JSON array. JsonArrayAttribute can also be added to the type to force it to deserialize from a JSON array.
Path '', line 1, position 1.
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateList(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, Object existingValue, String id)
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateValueInternal(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue)
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.Deserialize(JsonReader reader, Type objectType, Boolean checkAdditionalContent)
   at Newtonsoft.Json.JsonSerializer.DeserializeInternal(JsonReader reader, Type objectType)
   at Newtonsoft.Json.JsonConvert.DeserializeObject(String value, Type type, JsonSerializerSettings settings)
   at Newtonsoft.Json.JsonConvert.DeserializeObject[T](String value, JsonSerializerSettings settings)
   at Umbraco.Cms.Core.PropertyEditors.RichTextPropertyEditorHelper.TryParseRichTextEditorValue(Object value, IJsonSerializer jsonSerializer, ILogger logger, RichTextEditorValue& richTextEditorValue)

Unfortunately it's not very descriptive as to what exactly is causing the error (e.g. a particular field id or handle). Any ideas on what I can do to narrow down or resolve the issue?

Thanks.