After some period of time, some symbols become bold on Android 4-5. We use custom font ubuntг and library Calligraphy.
This is the code we use to work with Calligrapy:
@Override protected void attachBaseContext(Context newBase) {
super.attachBaseContext(CalligraphyContextWrapper.wrap(newBase));
}
CalligraphyUtils.applyFontToTextView(this, TypefaceUtils.load(assets, App.UBUNTU_REGULAR_TYPEFACE))
This is how it looks
UPDATE:
After using standard Android way everything become ok