Unable to read .tvg error

After spending an entire workday doing clean up on a shot, saving the whole time, when all of sudden (as in, I was drawing on one layer than flipped to the previous frame and this started) I cannot see any of my art on two of the layers (I have a total of 5 layers of vector art, and 1 layer of a reference movie brought in as bitmap frames) and whenever I scroll along the timeline it says “Unable to read …tvg.” where the “…” is the path to that drawing’s .tvg files in the elements folder of the project. Nothing I’ve tried seems to bring them back. Anyone else seen this problem? I’d really hate to have to re-do all that work off of yesterday’s backup… And I’m worried it might happen again!

I’m working in Harmony Premium 14.0.0, and running OSX 10.10.5.

I also noticed that if I try to move the whole project folder to another harddrive, it gives me this error in the OS:

“The Finder can’t complete the operation because some data in “019.xstage+” can’t be read or written.
(Error code -36)”

So, I’m guessing it has something to do with permissions?

That sounds to me like hard disk failure, rather than a software problem.

Don’t move project folders while you have the scene open, otherwise you will
corrupt the project. If you see a .xstage+ file, it means something went wrong
saving the project.

What normally happens when you save is that the existing .xstage file is renamed
.xstage~, the new save is written to a .xstage+ file as it is being written and when
the save is complete the .xstage+ file is renamed to .xstage.

I’m working on windows and I have the same problem, I was wondering if this error happens because of windows edition? My windows is : windows 10 home single language. I haven’t see this error on windows premium.
Is there any way to change something in windows setting for access to .tvg files?

If anyone knows or has a suggestion, please tell me soon, I have a deadline to meet! :~

This problem can happen for a variety of reasons.

To avoid problems edit projects only while they are located on the
internal hard drive of the system.

Don’t name anything (including the folder path where the project
is located) using spaces, accented letters or special symbols. Only
use a-z, 0-9, “_” and “-” for naming anything.

It’s also good to always maintain two rolling backups, one of the last
saved version and one of the version before that.

If .tvg files are not recognized, try re-installing the software from an
Administrator user account and reboot the system after that.