Save Button not working after Publishing the application

The default save button in Course_Edit page is not working. But when I checked for other pages such as Location,Trainee the save button is working fine. I removed the default save button and added the save button again from widgets but it was not saving the result, but if the required fields were not filled it display the custom message. How should this issue be resolved?.   Saving without entering Details //For Location Page: (The details were getting saved)
1 answers

Im not sure.

Does it really not save or is the issue that the page is not closed after save?

In that case, could it be that several edit-forms are displayed overlapping each other? So that if one closes, the other is shown which is identical?

Does cancel work?