Hi Benny, and thanks for the report. I couldn't reproduce the issue, and have a few questions:
- What iOS version are you currently on?
- What keyboard size are you using?
- Is this on the YouTube website, or the app? I assume the former, but wanted to double check.
- Have you restarted your device?
- Have you tried installing a build earlier than 171? There's a chance that the issue only coincidentally started occurring with build 171 for you, due to other changes such as an iOS update.