Corrupted Temporary FIle - Oh no!!!

I have the same problem. Two months of work gone down the drain!!! 

Working fine one day, not the other. Tried to install previous version (updated a week ago - meanwhile the file was working fine) and still same error. Tried to save file, rename it with a .story extension. Nothing! Both version of files same problems. Last version of Articulate or new, same problem.

In the list of files worked recently the file appears without an image. Other files appear with image and work ok. Including some worked yesterday and that today work. 

The working files are in an external SSD as I need to work on more than one laptop. Tried all the various laptops and it's the same on all. I do not see any file in %appdata%\Articulate\Storyline on the C: disk of the main laptop I work with. 

I am considering changing authoring tool. It's one of the most unstable software I ever used and it's a continuous struggle. I cannot save tenth of files with different names and the SSD I work with is of good quality and I do not have a problem with anything else. It's always this software that cause problems.

If you can help I would appreciate, otherwise I will propose we change authoring tool. 

Thanks

A very frustrated professional user