As we need submit button in Traditional App with file upload component. JMeter is not properly working when I want to check the file upload validation in screen action.

I created a simple app which content a simple form with file upload. It is a traditional app and it is working file in chrome or firefox browser. But when I want to create a test case in JMeter using recording the form is not working even the simple validation to check the file is selected by user or not is not working.

Validation worked if I covert button to Ajax submit but then the file upload not worked.