ExpandDrive SFTP2 Beta Driver corrupts Photoshop .psd files.

I created some photoshop files for web use that were fairly complex and saved them using ExpandDrive SFTP stable. Later on, I began using the beta driver because your staff had noted that the file truncation problems had been fixed.

I reopened a few photoshop files, made some changes, and saved them (overwrote). I tried to reopen the file in question using the new beta driver, photoshop reports and prompts that:

1. Some Layers are not readable. Would you like to flatten the image?
2. Upon selecting "No", it then reports that a blending mode of a certain layer is unsupported, then asks you if you would like to flatten it again.
3. Upon selecting "Keep Layer" it then says that "This photoshop file is unreadable by this version of photoshop".

(If I tell photoshop to flatten the image, ie: agreeing with it and taking the opposite route, the same thing results)

I've never had different versions of photoshop or different workstations... so it is not a version problem, the file is just irreversibly corrupted... and it began when I started using the beta driver.

It's really hard to tell now which .psd files were corrupted since the "modified time" field on the server seems to always report the date I switched over to using the beta driver. I restored an old version of the file of backups that I had dumped to another machine and the file is fine (although without the improvements that I now have to redo because the beta driver corrupted the new version).

I'm terribly dissatisfied with this as a paying customer. I know beta is "beta" for a reason, but seriously? Data loss supposedly "fixed" in exchange for file corruption?... and it's not like I can manually open it up in as a text file and fix the issue.

I've since reverted to using the "stable" driver and wont ever use your beta releases again.