If you try to restore the state of datatable with hidden columns, there will be problems with rendering.
https://snippet.webix.com/f7sfw9r1
https://imgur.com/a/2KeS01u
probably the error is because of setState is used in onStructureLoad event.
try to use it after the datatable is created.
or if you have to use it in onStructureLoad event, try to use setTimeout or webix.delay
https://snippet.webix.com/a97zgvwz
Thank for your answer. I’ll try.