I'm making a game on GameMaker, and when i tried to put here on itch.io, 2 problems appeared.

1 - The menu was not in the place as it should be. The last letter of the name of the game was escaping a little bit from the screen.

2 - An event that should be working in a way (like it's in the gamemaker), in browser was working differently.

Anyone knows why is that and how i can solve this?

Thx =)

For problem #1, it sounds like the graphics or text needed some form of control or code to tell it to ankor them to the screen or position in a centered way.

Either that, or the text was too big for Mobile.

For problem #2, it's almost sounding like an issue with a piece of code, or pieces of code, not being "framerate independent", and the lower framerate of Mobile making this clear.

I wanted to add...

Something quick you might be able to try... is seeing whether you can change the resolution of the html game in browser from the Game Page when editing the page, to be the same as the native resolution for your game.