sharepoint online – My Create & Edit list forms are rendering using the modern UI although we have customize them using Script Editor web part

We have migrated 3 custom lists from SP 2013 to classic team site inside SP online, now the 3 lists have the following main settings:-

  1. we have customized the list forms (Create & Edit) using Script Editor web parts, as follow:-

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  1. for the list settings >> we define to render based on the site settings (which is to use modern UI):-

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so now the expected behaviour is that the list views will render using the modern UI + But when we create/edit the list items the Create & Edit forms will render using the classic experience. Now this is working as expected for 2 lists. but is failing for the third list.. where on the third list the Create & Edit forms will render using the modern UI, although they have customized the forms using script editor web parts.. any advice on this?