I'm attempting to overwrite text

I’m attempting to write new text before another, but it just overwrite it.
There aren’t any steps to reproduce, it’s always.

Uhh, maybe you have to press Ins on keyboard?

Nope. I’m just typing.

Hey @dragonmenorka, welcome to the Glitch forum!

I’m not able to reproduce this issue anywhere - perhaps you could give us some more information? Does this happen in other applications or on other sites than just Glitch? What browser and operating system are you using? Does it still happen when you try it in a private window?