InDesign CC Edit Cross-Reference Panel very slow to load
I am working on my annual publication (about 250 pages) and am completing the many cross-references at the beginning of sections, within articles, etc. When I open the "Edit Cross-Reference" Panel it can take minutes to load - even if there are no invalid cross-references. I'm not sure what is different this year than last, maybe the upgrade from CS6 to CC - but I don't have many more cross-references than previous years.
I'm running Windows 10 (suppose that was probably upgraded since last year too) and have checked that I have plenty of space on my hard disk.
Any suggestions as to why this is happening and what I could do to fix? I have typed this entire message while waiting for the dialogue to appear.
Thanks in advance
Ian Bennett / Geneva, Switzerland