Are your movements in the same Finale document or separate documents?

Separate documents, so I restarted the letter and number sequence for each one.

… Is there a way to independently restart the sequence for each type of rehearsal mark? …

Yes, there is a way.

The following works for me:

Expression Tool.

Context-click the handle on the rehearsal mark.

In the context menu, choose “Edit Rehearsal Mark Sequence…”.

Hey Peter,

That's the problem I'm running into.  When I do that, both the letter and the rehearsal number update together.  So when I click the letter and edit the rehearsal mark sequence to start at letter "H," the number below it jumps to 8.  But if I click the number and do the same so that it starts at "20," the letter jumps to "T."  I'm looking for a way to edit them independently, so that I can have Letter H but rehearsal number 20.

I thought I might be able to duplicate the Reh Marks category and assign different iterations of each, but I found that changing the sequence start on either category changed both. (Bummer!)

All I can suggest is to create a category that allows you to enter one set of Reh Marks at the proper vertical offset, score list, and enclosure but with numbers entered manually. (I used a clone of Tempo Marks for the Score List and adjusted the offsets and font size but had to add the circle enclosure to each mark manually.)

Not ideal, I know; but it lets me do what you seem to need.

I think I've found what the issue is. If both Rehearsal Marks begin together or coincide with either being the first occurrence, then they are linked (for whatever reason). To avoid this:

Start the second rehearsal mark at the second measure (or some place before where there is not another rehearsal mark) and start the sequence at 19. Hide the rehearsal mark. I guess that's a lot easier than what I was thinking before ....

OK, now I am able to duplicate the problem:

Start both Rehearsal Marks at the same measure, and they both get set to the option {Restart Sequence At} - even if the other Rehearsal Mark instead should be set to the option {Continue Sequence}.

I also found a workaround that seems to solve the problem:

At first attach one of the Rehearsal Marks to the following measure, and set one to {Restart Sequence At}, and the other to {Continue Sequence}.

Then, move the later Rehearsal Mark back to the previous measure.

As the Rehearsal Mark gets past the half of the measure, it will switch its Attachment Point to the previous measure.

You can then set the precise positioning by selecting the Rehearsal Mark’s handle, and hitting Shift-Return.

Magic!  Thank you!