Non-visible ties, when copied, do not remain non-visible in the duplicate
MS 3.4.2, Windows 10
In the attached score, note that the tie in the upper staff is marked not visible.
Select the first two measures and press "R". (or copy/paste to later in the score)
In the duplicated measures, the tie remains not visible.
In the duplicated measures, the tie becomes visible.
I have not noted any other items that have this behavior. All items, if invisible when copied, are also invisible in the duplication.
Also, please see:
which is somewhat similar, but different in the details. In Issue 284619, a relayout will cause the visibility status of the element to change properly. That is not the case in this issue.