Mobile stack splitting bar still offset

Despite MCPE-173632 closed as Fixed, the UI appears not aligned correctly

Steps to Reproduce:

1. Get more than one item in the same stack.
2. Tap and hold its inventory slot.

Observed Results:

The green bar is displayed about half a texel below where it should be, misaligned with the outline and background.

Expected Results:

The green bar is placed perfectly on top of the black background, aligned with the outline.