Problem with saved search builder queries

alvarohnds

Link to test case: https://live.datatables.net/febugiyo/1/edit
Debugger code (debug.datatables.net): ezoyot
Error messages shown: None
Description of problem:
Hello, I have a table with SearchBuilder in a modal and stateSave: true.
If I made multi-level queries, they work correctly but when reloading the page, the queries still are but multilevel dissapears until I add another query.
Someone know how to resolve this?
Sorry for my English, is very bad.

Thank you