Hi,
This is an old issue and still remaining in N15. When pasting time before a tempo change in the time line. Markers after the tempo tempo change gets shifted according to the reverse setting of the time signature in the marker track. (So the work around is easy, just set the time base to the one you don’t want when pasting time. For other operations it works as expected).
Short screen capture of the issue:
And the work around:
This is on mac.
Best regards,
Johannes