Make sure a nav mesh bounds volume is added to the map where the AI is allowed to move.
Try adding a print to the On failure output and print the failure reason.
I would suggest looking into behavior trees, it’s a good way to organize and better visualize what the AI is doing, check this YouTube video for more info.
thank you for helping. i tried the print on the failed. still not working. i do got a nav mesh. i tried resize and replace.