Hi Brett, I think you also sent this through support. It appears that you were saving this on a network drive and that connection stopped working while you had the file open.
Can you also check the ‘Sharing and Permissions’ area of the ‘Get info’ area to make sure that you have access to save?
Talk to your IT person, They can assign you permission. If they don’t want to provide blanket read/write permission, they can set up a folder on the server just for you.
I’ve been having the same issue since Version 2, but I never thought it would be a Hype issue. I tried editing the permissions, but never worked. I just opted to create the animation from zero.
Today I noticed I only have this issue with Hype (now V4), so I looked for an answer here on the forum.
With Daniel’s answer, I finally know why this happens. My fix was:
Turning my drive sync back on.
Because I sometimes turn it off to get more internet bandwidth for other tasks.