Used that script in the corresponding CharacterAdded function but again the issue persists 
From some other feedback I got, there might be issues with the HipHeight (which is automatically adjusted, first print is my player’s hip height before morphing, second one is after morphing https://gyazo.com/3c3ad385766dd3ae6ef3b5c77f7c1f8b), I’m going through some posts on the DevForum about the hip height to understand if it could affect the player’s weird behavior, but I also will check this link (Changing Packages Causes Player to Fall Over? - #5 by Kampfkarren). If any other idea/suggestion pops up please let me know!
EDIT1: Checked the hip height, didn’t encounter the issue but one other developer encountered the bug again. This could probably be an issue with the characters, because I have the default one with no accessories or different body parts but the other developer does.