DisplayInspector cannot display lists in 2020.3.34f1

[TheWalruzz]

Recently, after an update to 2020.3.34f1 I've noticed that generic lists are no longer displayed when DisplayInspector attribute is used, at least for fields inside an object. They work fine when inspecting SO directly, but not in nested inspector.

Items field above is just a plain List<SomeObject> and it's not being displayed like it did a couple of versions back.