Hello march67,
Thanks for the test file. We could reproduce the crash.
We've identified the reason for the crash in your file. The problematic object is the RSS feed icon at the top right of the spread.
We've determined a fix for the crash and it should be available to all users in one of the upcoming patches. In the meanwhile, to prevent the crash, you could use the following workaround : Cut this object onto the clipboard. Duplicate the spread. Then paste the icon back in its place (Edit > Paste in Place).
Sorry for the trouble.
Thanks,
Ravi Kiran
Adobe InDesign team