I suspect it's because the text is page-attached, rather than measure-attached.

https://usermanuals.finalemusic.com/Finale2012Win/Finale_Left.htm?text%20frame#CSHID=1|StartTopic=Content%2FFinale%2FSearch.htm|SkinName=main 

Hi Mike,

Thanks so much for the response. Are you saying that text created with the text tool can be measure attached? I was under the impression that this could only be done using the expression or articulation tools. Your link took me to the search page but I was unable to find anything that explained how to "measure-attach" using the text tool. The strange thing, as I mentioned, is that when inserting a blank page a the beginning of the document, it behaved differently.

Sorry. Go to the search page, and tap Frame Attributes.

If you look at the dialogue box that’s pictured, you will see a “radio button” for page attached or measure attached. I can’t explain the other situation, but I’m sure someone else will!

By default a text block will be measure / staff attached if it is entered from Scroll View.

Shortcut to the dialog box Frame Attributes:

Drag-select the text block handle, and hit Shift-Return.

By The Way (Off Topic):

Shift-Return also works with expressions.

Thank you, guys, this is amazing. I wish I had known this before. I even looked at the Frame Attribute box and still did not notice this setting.

So I have to go back and assign each block of text to its measure, individually?  This will take a while but is better than any alternative solutions. And it's very useful that I know this for the future.

Still a mystery why I was able insert a page at the beginning of the score and all text moved along with the measures even though the text was not measure attached. I wish it were this easy for the other pages. Maybe someone can still explain this? Reattaching each one of these text blocks, individually, is brutal.

I'm not sure. It is odd, though. For me, the page-attached text moves with the music in one file but not in another (Fin v25 and 2014.5).

I appreciate everyone's help. It's great to have a community like this.

My solution, this time, was to split up each document into two separate documents, allowing me to insert blank pages to the beginning of each one, since inserting a page into the middle of the one doc was an impossibility. In the future, I will attach each thing that I create using the text tool to the measures, themselves, rather than to the page.

Thank you again!

Did a bit of fiddling today and found a solution.

From the Finale Manual (ver. 2012 and v.25):

When you insert blank pages, any items such as titles or text blocks that were assigned to that particular page will be shifted to the next page.

However, when you have linked parts, this does not happen. Text blocks remain on the page they are assigned to. To get around this, you have to extract the score. If you don't need linked parts (Finale Default documents generate them automatically), then just delete all of the linked parts and that should solve the page-attached text issue when inserting blank pages.

But of course, you can always reassign the page number of text blocks from the Frame Attributes dialog box as PETER THOMSEN mentioned. If there are a lot, it is a bit tedious.

Man, I think I got it! Thank you so much, Mohammed! I was just about to embark upon another project involving this problem and this saved me a ton of work!

So I went to File > Extract Parts and then checked "Score" and unchecked "Guitar." This is what you were referring to, right? It must have been because it worked!

Thank you again so much!

Yes. That's exactly what I was talking about.

What instruments are in your score, anyway? Is it just guitar?

Also, what are you using text blocks for, exactly?

Yes, the only instrument is guitar and in these particular examples, the staves either have rhythmic notation or are left blank. The text tool is being used for the chord symbols along with their numeral analysis which are both placed above the staves. (Maybe I should've use the chord tool to enter in the chord names but I would still have the numerals to contend with.) The other text tool items are the numbers of each exercise, their corresponding keys, places for the student enter tempo and other info, page title and footer. A lot of text to have to go back and attach to the staves. Very tedious, like you said. Your solution helped a lot!

Ok. Good to know.

Since this is for solo guitar or you aren't concerned about handing separate parts to multiples players, you should delete all of the parts from the file. Go to: Document > Manage Part > and delete all of the parts. Now, you shouldn't need to extract the score from the file.

For the chords, definitely use the Chord Tool. But if you don't want to deal with that, I'd suggest using the Expression Tool (mf icon) as you can attach each item to a beat in a measure and other positioning options as well as create a "Category" for fine-tuned placement. I use this for piano fingerings.

For tempo marks, again, use the Expression Tool. Anything text related you want attached to a measure or beat, consider using the Expression tool.

For numerals (I assume you mean harmonic analysis?), it is recommended to use the Lyrics Tool and the Finale Numerics Font:

https://usermanuals.finalemusic.com/Finale2012Win/Content/Finale/HarmonicAnalysis.htm

https://usermanuals.finalemusic.com/Finale2012Win/Content/Finale/Figured_bass.htm

Excellent, thanks for that additional info! I'll look into all of this is soon as I get back to the house