This question is an exact duplicate of:
How to reproduce bug:
- Start typing a comment.
- Rotate the screen orientation of your device.
- Try clicking the "POST" button.
- Nothing will happen.
I've reproduced using the the latest version (1.0.85) of the app on Samsung I9305 running Android 4.4.4
And Asus ZE551ML (5.0).
@IlmariKaronen has reproduced on Samsung XCover 3 (5.1.1).
@JonasCz has reproduced this on Cyanogenmod (4.4).
@meatball has reproduced this on Nexus 5 (6.0.1).