When writing, I often need to use tildes like ó (but still need my keyboard to be in English), so I just hold the key down and press 4:
Usually it works fine. But several times have I ended up with this:
I don't know. It's like some sort of lag happens and the keystroke is repeated or something.
This is not software specific: it has happened to me in all sorts of applications with textfields. Even web browsers.
Is this a known problem? Is there a solution?
I am using Mac OSX Yosemite 10.10.3. I have a Macbook Pro 15" Retina Display Mid 2014. I don't use other Macs so I can't say I can reproduce this issue in them. I use the builtin keyboard.