My Character doesn´t fall

I made a first person game and I made a climb system, the problem is that when the character climb something it doesnt fall to the floor, it keeps walking in the air

And how can we know what the problem is? You say nothing about your climb system.

Did you change some something in the character movement component? Did you change the state from walking to flying? Did you set gravity to 0? …

I changed the jump Max Hold time in the character blueprint

And that’s it? So, if you set Max Hold time again to zero, everything is back to normal?