Hhm, curious....
I don't think the problem is Inkscape not saving the file correctly. It's more likely that for some reason, Sheetcam is reading it differently.
Questions:
Are you sure the SVG file you attached is the one giving the wrong display in Sheetcam? Because I notice in the SVG file, everything is enclosed in a rounded rectangle. But the Sheetcam display shows more of a fancy enclosure for all the text.
Has Sheetcam been used to do anything to the file, such as swap out the fancy border? Anything like that?
Another thing I notice is that the fancy enclosure, and the 2 groups which seem to have moved, are all made of pale pinkish lines - while everything else has bolder, brighter, yellow lines. That could be a clue, I think, although I don't know Sheetcam well enough to guess what it means.
I notice you have everything grouped. There are nested groups, so that in most cases each letter is a separate path, and all the letters of a word or name or date are in a group. And then all the groups are grouped, together with the rectangle. Can Sheetcam handle that? I'm a little surprised if it can look inside the groups. That doesn't meant it's not possible, just would be surprising to me.
PS - Just under the last message in a topic thread, is a Notify button. So as long as you used a working email address to register, you'll be notified about any replies to that topic. Also, in the Profile tab, you can configure a few different notifcation options.