I have experienced something similar, but only when I re-align the text. Seems the highlight icons are stationary and do not move with the text, so if I move the text sometimes the icon is over the text or too far away from it.
I have never noticed the color-changed text not aligning with the original, and you say the issues are there even when using a non-customized template, which I have not seen.
You could try updating your DirectX, which solves a lot of "previewing" issues.
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