Crashes when navigating to a layout.
A filemaker database I'm working on crashes Filemaker Pro 13 when navigating to a single specific layout.
Main question: what might make a layout crash filemaker?
This is happening through navigation scripts AND when navigating through the layout manager or via the dropdown in layout mode. Also, restoring from backups does not fix the layout. Duplicating the layout does not fix the problem.
The layout was using Filemaker 13 features like popups but was used by some clients in Filemaker 12 - in which those features simply do not show up.
Any suggestions or descriptions of similar problems are appreciated, thanks!