GameMaker Character is colliding with nothing?

[Pontereika]

Not sure if this is the right place to post this, but i've just started learning game maker and have run into an issue i have no idea how to fix, my character seems to be offset to the stage and the actual hit box locations of the walls are offset so it looks like they run into nothing or that they pass right through the walls at some points, all the collision is still there its just not lining up with the visual of the walls. has anyone heard of this problem?

this is my character in the actual editor.
this is what it looks like when i start the game.

my code

 

[Mert]

This is because your sprite's collision shape. Set your sprite's collision shape as precise

 

[Pontereika]

So this didn't actually solve my problem BUT i did figure it out while doing this! i set it to precise like you said and it didn't work, but then occurred to me that it was switching to a different sprite when the game started cause i was programming a jump animation, so i went to THAT sprite and went to set it to precise when i saw it actually wasn't centered in the middle when my main sprite is, so i centered it and that fix it. Thanks for your advice i didn't even know you could make precise hit-boxes so ill probably use those from now on

 

[SamBean]

So this didn't actually solve my problem BUT i did figure it out while doing this! i set it to precise like you said and it didn't work, but then occurred to me that it was switching to a different sprite when the game started cause i was programming a jump animation, so i went to THAT sprite and went to set it to precise when i saw it actually wasn't centered in the middle when my main sprite is, so i centered it and that fix it. Thanks for your advice i didn't even know you could make precise hit-boxes so ill probably use those from now on

This fixed my issue, thanks! My player had been teleporting into the floor every time they ran.