'Unexpected path error' after upgrading house

Hi,

I upgraded the houses in the train subset of the house scenes loaded from 'procthor-10k'. I used the [upgrade_house_version.py](https://github.com/allenai/procthor/blob/main/procthor/utils/upgrade_house_version.py) script for the same.

I however get the following error. Can someone help me understand how can I resolve the same? Is this a bug?
```
File "main_real.py", line 223, in
main()
File "main_real.py", line 179, in main
currect_house = SCENES.initialize_house(
File "/home/sohamdit/FILM_refactor_Alexa/./boolset/tasks_and_samplers.py", line 240, in initialize_house
controller.step(
File "/home/sohamdit/anaconda3/envs/py38/lib/python3.8/site-packages/ai2thor/controller.py", line 1011, in step
raise RuntimeError(
RuntimeError: Newtonsoft.Json.JsonReaderException: Error reading string. Unexpected token: StartObject. Path 'house.proceduralParameters.ceilingMaterial'.
at Newtonsoft.Json.JsonReader.ReadAsString () [0x0009c] in :0
at Newtonsoft.Json.JsonReader.ReadForType (Newtonsoft.Json.Serialization.JsonContract contract, System.Boolean hasConverter) [0x000c2] in :0
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.PopulateObject (System.Object newObject, Newtonsoft.Json.JsonReader reader, Newtonsoft.Json.Serialization.JsonObjectContract contract, Newtonsoft.Json.Serialization.JsonProperty member, System.String id) [0x00266] in :0
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateObject (Newtonsoft.Json.JsonReader reader, System.Type objectType, Newtonsoft.Json.Serialization.JsonContract contract, Newtonsoft.Json.Serialization.JsonProperty member, Newtonsoft.Json.Serialization.JsonContainerContract containerContract, Newtonsoft.Json.Serialization.JsonProperty containerMember, System.Object existingValue) [0x00161] in :0
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateValueInternal (Newtonsoft.Json.JsonReader reader, System.Type objectType, Newtonsoft.Json.Serialization.JsonContract contract, Newtonsoft.Json.Serialization.JsonProperty member, Newtonsoft.Json.Serialization.JsonContainerContract containerContract, Newtonsoft.Json.Serialization.JsonProperty containerMember, System.Object existingValue) [0x0006d] in :0
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.SetPropertyValue (Newtonsoft.Json.Serialization.JsonProperty property, Newtonsoft.Json.JsonConverter propertyConverter, Newtonsoft.Json.Serialization.JsonContainerContract containerContract, Newtonsoft.Json.Serialization.JsonProperty containerProperty, Newtonsoft.Json.JsonReader reader, System.Object target) [0x00069] in :0
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.PopulateObject (System.Object newObject, Newtonsoft.Json.JsonReader reader, Newtonsoft.Json.Serialization.JsonObjectContract contract, Newtonsoft.Json.Serialization.JsonProperty member, System.String id) [0x00266] in :0
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateObject (Newtonsoft.Json.JsonReader reader, System.Type objectType, Newtonsoft.Json.Serialization.JsonContract contract, Newtonsoft.Json.Serialization.JsonProperty member, Newtonsoft.Json.Serialization.JsonContainerContract containerContract, Newtonsoft.Json.Serialization.JsonProperty containerMember, System.Object existingValue) [0x00161] in :0
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateValueInternal (Newtonsoft.Json.JsonReader reader, System.Type objectType, Newtonsoft.Json.Serialization.JsonContract contract, Newtonsoft.Json.Serialization.JsonProperty member, Newtonsoft.Json.Serialization.JsonContainerContract containerContract, Newtonsoft.Json.Serialization.JsonProperty containerMember, System.Object existingValue) [0x0006d] in :0
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.Deserialize (Newtonsoft.Json.JsonReader reader, System.Type objectType, System.Boolean checkAdditionalContent) [0x000db] in :0
at Newtonsoft.Json.JsonSerializer.DeserializeInternal (Newtonsoft.Json.JsonReader reader, System.Type objectType) [0x00054] in :0
at Newtonsoft.Json.JsonSerializer.Deserialize (Newtonsoft.Json.JsonReader reader, System.Type objectType) [0x00000] in :0
at Newtonsoft.Json.Linq.JToken.ToObject (System.Type objectType, Newtonsoft.Json.JsonSerializer jsonSerializer) [0x00012] in :0
at Newtonsoft.Json.Linq.JToken.ToObject (System.Type objectType) [0x002ff] in :0
at ActionDispatcher.Dispatch (System.Object target, DynamicServerAction dynamicServerAction) [0x00180] in <9aa269828bcd47a997197f4911198591>:0
at UnityStandardAssets.Characters.FirstPerson.BaseFPSAgentController.ProcessControlCommand (DynamicServerAction controlCommand, System.Object target) [0x0007d] in <9aa269828bcd47a997197f4911198591>:0
```