Position Rehearsal Marks (category Text) has been updated to fix a bug involving remote respelling of transposed instruments (7# -> 5b, or 7b to 5#).
I have also been working on getting this to work with Text objects using the Rehearsal Mark text style, but it is harder to do that I thought it would be (text objects are positioned quite differently than Rehearsal Mark objects are, especially if there are notes at the same position as the text).
I have not figured out a way to correctly reverse engineer this yet, so I will leave that for a future update,and get the bug fix in now.
Thanks to Simon Nathan for pointing out the problem (and several others) and for doing some testing on the update.