Bug Maximize On Play breaks isGrounded

Hi, I'm kind of new to unity. So, in my fps game I use a Character Controller for my character. Everything works just fine but when I turn on the Maximize on Play button, is Grounded is always off and every couple of seconds, it's on for like half a second. For some reason when I turn on Sync it fixes itself, I call of this code in the Update Function. So, I'm guessing it has something to do with updating. When I used Fixed update everything broke, and LateUpdate did nothing.

 

Sounds like the ground checking code is buggy.

Here's two examples of doing it properly:

Ultra simple:

https://forum.unity.com/threads/how...racter-movement-in-unity.981939/#post-6379746

More full-featured:

https://forum.unity.com/threads/a-basic-first-person-character-controller-for-prototyping.1169491/

The other possibility is that changing your screen size is being detected by something else in your game and nudging something physics-wise.

 

Thanks for the help!