Submit button click not call onSubmit method after changing form input

[nileshprajapati007444]

scenario 1:
If I change any Date or Time, then click Submit button. It does not calling obSubmit method.

scenario 2:
But If I doe not change any Date or Time, and directly click Submit button. It call obSubmit method for first time. Second time click submit not call obSubmit method.

[CSLMeyers]

@nileshprajapati007444 I have fix scenario 2, for scenario 1, could I have you test data?