Hi, Daniel. Thanks for the reply!
I have since upgraded to Hype 3.5 (or whatever the current version is). I had hoped that this would solve the problem but, unfortunately, it still exists.
I opened my problematic document in the new version of Hype and began to rebuild and the same thing happened — all of the re-imported images disappeared from the document after eventually getting an error message similar to the one that Dominic got and clicking through the repeated error messages.
If I right click on the Hype document itself and choose SHOW PACKAGE CONTENTS, the RESOURCES folder that previously held the images is now empty. And they aren’t in the trash or anywhere on my hard drive if I do a search for them — they are just gone.
I am guessing this document is screwed somehow and if I start off from scratch in the new version, I will no longer have this problem. I’m disappointed, though, because I hate to start over completely.
So, my temporary solution for this piece is to build to a certain point and save a copy frequently, so that when this inevitably happens, I have a copy not too far back to rebuild from. It’s a pain, but it’s better than starting over from the top.
Next time I have this image loss and missing scratch file issue, I will try to generate a bug report.
Again, thank you for your reply. I do love Hype; it’s an amazing tool.