I've noticed that my keyboard only glitches out, when I've been using the <a href="https://play.google.com/store/apps/details?id=com.glow.android">Glow app</a>.. However, if I delete the <a href="https://play.google.com/store/apps/details?id=com.glow.android">glow app</a> from my phone, I don't have this issue. It'll also stop being glitchy when I restart my phone. It's not a constant occurrence.. it's just randomly.. And it'll lag a bit then catch up.. or it'll delete part of the words in a comment/post I'm writing.. especially if the comment/post is a bit winded.