Awesome, have you seen my GrpRead, TPROG, and LblRW programs, too ? Those are also pretty powerful for BASIC games like RPGs. The first is like CopyProg for groups (it allows you to access data from the groups and extract variables, read lines from variables, and recall pictures from groups). The other is like a simplified CopyProg that is designed specifically for loading archived subprograms to RAM and cleaning them up (it is also tiny). LblRW is rather epic since it allows you to edit data inside your program by overwriting lines or reading lines starting at a label. This lets you keep user data directly in the program (for example, you can make a label called Lbl SV and store the user name and any string data to the lines following). I used that to store monster data, item data such as prices and descriptions, and all sorts of similar code that way.

Sorry, my computer died (bad battery, off the charger for about a minute). Anyways, GroupRead can be found on TICalc here and LblRW can be found here.

In particular, do you mean empty lines, or is it on lines that actually have data? I only encountered a problem with that on newlines, but if you could give an example of it failing on lines with data, that could be helpful (before I release another update).

This should fix it. There was a line of code checking for the parity of a result instead of whether it was positive or negative. Essentially, I used jp pe, instead of jp p,.

Oops.

Okay, now let's try this. I figured out the problem and even a rookie wouldn't have made this mistake! I forgot to modify HL after crossing a page boundary.
Xeda112358 has shame.

Hmm, you cannot get CopyProg to work? What isn't working? I tried the line reading and that works, and copying from one var to another worked for me, as well as the GetName instruction works for programs and whatnot (I just tested it and there is an issue with strings and whatnot, but it still returns strings in an appropriate format).

I did not have any issues when I tried it and I tried values of R from 0 to 7 (at this point, it just kept returning the last line as it should). I tried it with the program archived and unarchived and it didn't make a difference, so maybe I forgot to upload something...?