Regression: Input box disappears in full-screen when the window is short
OpenAI Developer Community
April 17, 2026
Hey @CY-Anson, yeah that’s frustrating, especially when the input just disappears on you.
This isn’t how it’s supposed to behave. Usually it comes down to a layout hiccup with smaller window heights. Things like browser zoom, split screen, or dev tools open can push the input out of view, and sometimes the “sticky” footer just doesn’t reposition correctly.
A few things that have helped others:
* Reset zoom to 100 percent
* Give the window a quick resize up then back down
* Try incognito or another browser to rule out extensions
* Close dev tools if they’re open
A couple folks have seen this more on Chrome/Safari when resizing a lot.
Curious if any of those change the behavior on your side.
-Mark G.
Discussion in the ATmosphere