Character jump problem

Hi, Am a beginner and i started out with a character whose bp has a jump animation, though however whenver i try to jump i need to hold to the space bar(jump input button) to execute a jump but it is not the case in third person character which comes in default. The animations which i used are from mixamo. So can someone please help me out here?
I have uploaded the blueprint screen shot for the character if that is required.