Does anyone have experience with Audacity? or modding custom sounds into games?

im trying to do a thing and the audio sounds fine in audacity but when it plays in game the end of it sounds glitchy at worst and has an audible click at best - some files dont have anything wrong with them at all so im not entirely sure of what to make of it.

https://www.youtube.com/watch?v=ReMBZDOowgA