When importing a large postman collection I get java.lang.StringOutofBoundsException. How to fix?

Also, it may be something unexpected in the actual data, rather than just the shear size of the postman collection? When I see index out of bounds I am imagining maybe the code is trying to parse some part of the collection (e.g. some kind of strange delimiter being used or possibly too many / little of something) that it hasn't been setup to handle - are you about to provide the collection?