Rhino 6.21

Rhino Rhino for Windows
1

Just updated to the latest instalment - 6.21.

I’m now met with the following message and can’t open Rhino:

Unexpected BsonType value: 121

Parameter name: type

Has anyone else come across this?

2

Windows or Mac V6?
What specific steps do you make that results in this message?
Maybe a screenshot would be helpful.